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Explore glossary

Often confused

Choose the word or construction that says what you mean. These comparisons are curated separately from glossary entries and checked against published sources.

73 curated results

Comprise / Compose / Include / Contain / Constitute

Usage

A whole comprises or contains its parts; parts compose or constitute a whole. Include introduces members or examples. Write “comprises”, not “comprises of”.

Comprise

The whole contains or consists of the parts.

“The working group comprises representatives from six agencies.”

Compose

The parts make up the whole, or the whole is made up of the parts.

“Representatives from six agencies compose the working group.”

Include

You are naming members or examples without relying on the word to signal a complete list.

“The review will include interviews with service teams and vendors.”

Contain

You mean hold something within a document, system, place or boundary.

“The annex contains the detailed risk assessment.”

Constitute

The parts collectively form the whole, especially in formal writing.

“These three workstreams constitute the transformation programme.”
Watch for

comprises of; is comprised of

Usage note

“Is comprised of” is common but still draws criticism. Use “comprises” or “is composed of” when you want wording that will travel cleanly.

Source checked 2026-08-10 ↗ (opens in a new tab)

Criterion / Criteria

Different forms

Criterion is singular; criteria is plural. Pair “one” or “a” with criterion, and use a plural verb with criteria.

Criterion

You mean one standard used to judge or decide something.

“Cost is one criterion in the assessment.”

Criteria

You mean two or more standards used to judge or decide something.

“The assessment criteria include cost, feasibility and impact.”
Watch for

one criteria; a criteria; the criteria is

Source checked 2026-08-10 ↗ (opens in a new tab)

Fewer / Less

Usage

Use fewer for countable items and less for amounts. Established expressions involving time, money, distance and measurements often use less.

Fewer

You are referring to a number of separate things that can be counted.

“The revised process requires fewer approvals.”

Less

You are referring to an amount, extent or degree.

“The revised process requires less time.”
Watch for

less approvals; less requirements

Usage note

This is a useful clarity distinction, not an absolute ban: phrases such as “less than five years” are standard.

Source checked 2026-08-10 ↗ (opens in a new tab)

Reply / Revert

Regional usage

Revert meaning “reply” is established in some varieties of English and familiar in Singapore workplaces. Reply is less likely to be misunderstood by an international audience.

Reply

You want the clearest widely understood word for answering a message.

“Please reply by Friday if you have comments.”

Revert

You mean reply in a variety of English where that established sense is familiar.

“Please revert with the cleared figures by Friday.”
Watch for

revert back

Usage note

Do not label the local use of revert as inherently wrong. Choose between the words based on audience and clarity.

Source checked 2026-08-10 ↗ (opens in a new tab)

Appraise / Apprise

Different meanings

Appraise is about assessment; apprise is about informing.

Appraise

You mean assess, evaluate or determine the value of something.

“The panel will appraise the proposal against the published criteria.”

Apprise

You mean inform someone about a situation or development.

“Please apprise the Director of the change before the meeting.”
Watch for

appraise someone of

Source checked 2026-08-10 ↗ (opens in a new tab)

Precedent / precedents / Precedence

Different meanings

Precedents are earlier examples; precedence is priority. You set a precedent, but one consideration takes precedence over another.

Precedent / precedents

You mean an earlier example, decision or practice that may guide a later one.

“The earlier exemption may set a precedent for future cases.”

Precedence

You mean priority or a higher place in an order of importance.

“Safety takes precedence over speed.”
Watch for

set a precedence; takes precedent

Source checked 2026-08-10 ↗ (opens in a new tab)

Advice / Piece of advice / Advise

Different forms

Advice is an uncountable noun; advise is a verb. Write “a piece of advice” for one recommendation and “please advise” when asking someone to respond.

Advice

You need the uncountable noun for guidance or recommendations collectively.

“We sought Legal's advice before proceeding.”

Piece of advice

You need to count one recommendation.

“She gave the project team one useful piece of advice.”

Advise

You need the verb meaning give a recommendation or information.

“Please advise whether the proposed approach is acceptable.”
Watch for

please advice; an advise; advices; an advice; a useful advice

Source checked 2026-08-10 ↗ (opens in a new tab)

Affect / Effect / Effect (verb)

Different forms

Affect is usually a verb meaning influence; effect is usually a noun meaning result. Effect is also a valid formal verb meaning bring about.

Affect

You usually need a verb meaning influence or change something.

“The delay may affect the implementation date.”

Effect

You usually need a noun meaning a result or consequence.

“The delay had no effect on service delivery.”

Effect (verb)

You mean bring about or cause a result, usually in formal writing.

“The new operating model will effect a lasting change in service delivery.”
Watch for

have an affect on; may effect the outcome

Source checked 2026-08-10 ↗ (opens in a new tab)

Complement / complementary / Compliment / complimentary

Different meanings

Complement and complementary are about completing or enhancing; compliment and complimentary are about praise. Complimentary can also mean free of charge.

Complement / complementary

Something completes, enhances or works well with something else.

“The dashboard and written report provide complementary views.”

Compliment / complimentary

You mean praise or an admiring remark.

“The Chair complimented the team and sent a complimentary note.”
Watch for

complimentary functions; complemented the team

Source checked 2026-08-10 ↗ (opens in a new tab)

Principal / Principle

Different meanings

Principal can mean chief or most important; principle is a rule or fundamental belief.

Principal

You mean the most important, or a person or sum in a leading role.

“The principal reason for the change is service reliability.”

Principle

You mean a fundamental rule, belief or standard.

“Accessibility is a core design principle.”
Watch for

guiding principal; principle reason

Source checked 2026-08-10 ↗ (opens in a new tab)

Discreet / Discrete

Different meanings

Discreet is careful or unobtrusive; discrete is separate or distinct.

Discreet

You mean careful, unobtrusive or unlikely to draw attention.

“Make discreet enquiries before approaching the stakeholder.”

Discrete

You mean separate and individually distinct.

“The programme has three discrete workstreams.”
Watch for

discreet workstreams; a discrete enquiry

Source checked 2026-08-10 ↗ (opens in a new tab)

Stationary / Stationery

Different meanings

Stationary means still; stationery refers to writing materials.

Stationary

You mean not moving or not changing.

“The vehicle remained stationary during the inspection.”

Stationery

You mean writing materials or office paper supplies.

“Order the approved letterhead through the stationery catalogue.”
Watch for

office stationary; a stationery vehicle

Source checked 2026-08-10 ↗ (opens in a new tab)

Assure / Ensure / Insure

Different meanings

You assure a person, ensure an outcome and insure against financial loss.

Assure

You give a person confidence or remove their doubts.

“We assured residents that essential services would continue.”

Ensure

You make certain that something happens or is true.

“Please ensure that the figures have been cleared.”

Insure

You arrange financial protection against loss or damage.

“The contractor must insure the equipment against damage.”
Watch for

insure that; ensure the equipment against loss

Usage note

Ensure and insure have overlapped historically. The distinction above is the clearest choice in formal workplace writing.

Source checked 2026-08-10 ↗ (opens in a new tab)

Imply / Infer

Different meanings

The sender implies; the receiver infers. Some historical overlap exists, but this distinction prevents ambiguity.

Imply

A speaker, writer or piece of evidence suggests something indirectly.

“The paper implies that further approval will be needed.”

Infer

A reader or listener reaches a conclusion from evidence.

“We inferred from the response that the proposal was not supported.”
Watch for

are you inferring that

Source checked 2026-08-10 ↗ (opens in a new tab)

Elicit / Illicit

Different meanings

Elicit is a verb meaning draw out; illicit is an adjective meaning prohibited.

Elicit

You mean draw out or obtain a response, fact or reaction.

“The consultation questions elicited detailed feedback.”

Illicit

You mean unlawful, prohibited or not permitted.

“The controls are intended to detect illicit transactions.”
Watch for

illicit a response; elicit activity

Source checked 2026-08-10 ↗ (opens in a new tab)

Council / Counsel

Different meanings

A council is a group; counsel is advice or an adviser.

Council

You mean an advisory, governing or deliberative group.

“The council will consider the recommendation next month.”

Counsel

You mean advice, the act of advising, or a legal adviser.

“The agency sought counsel before responding.”
Watch for

legal council; councilled the team

Source checked 2026-08-10 ↗ (opens in a new tab)

Cite / Site / Sight

Different meanings

Cite a source, visit a site and see a sight.

Cite

You refer to a source, authority or example.

“Please cite the relevant circular in the submission.”

Site

You mean a location or place, including a website.

“The team inspected the proposed site.”

Sight

You mean vision, something seen or the act of seeing.

“Keep the access card in sight during the inspection.”
Watch for

web sight; site a source

Source checked 2026-08-10 ↗ (opens in a new tab)

Practice / Practise

Regional usage

In British-style spelling, practice is the noun and practise is the verb. American English uses practice for both.

Practice

In British-style spelling, you need the noun.

“This is standard practice across the department.”

Practise

In British-style spelling, you need the verb.

“Teams should practise the recovery procedure each year.”
Watch for

to practice; a practise

Usage note

Singapore public-sector writing generally follows British spelling, but quoted names and source material may use another convention.

Source checked 2026-08-10 ↗ (opens in a new tab)

Licence / License

Regional usage

In British-style spelling, licence is the noun and license is the verb. American English uses license for both.

Licence

In British-style spelling, you need the noun for permission or an official document.

“The operator must renew its licence annually.”

License

In British-style spelling, you need the verb meaning grant permission.

“The authority licenses operators that meet the requirements.”
Watch for

a license; to licence

Usage note

Follow the spelling used in an organisation's official name, legislation or quoted source.

Source checked 2026-08-10 ↗ (opens in a new tab)

Programme / Program

Regional usage

British-style writing commonly uses programme for organised initiatives and program for computing. American English uses program for both.

Programme

In British-style spelling, you mean an organised plan, initiative, broadcast or schedule.

“The capability programme will run for three years.”

Program

You mean computer code or a software application.

“The program validates the uploaded file.”
Watch for

software programme; training program

Usage note

Keep official programme names unchanged, even when another spelling convention is used elsewhere.

Source checked 2026-08-10 ↗ (opens in a new tab)

Dependent / Dependant

Regional usage

Dependent is the adjective. In British-style spelling, dependant is the noun for a person who relies on another.

Dependent

You need the adjective meaning reliant or conditional, or the general American noun spelling.

“The launch date is dependent on security clearance.”

Dependant

In British-style spelling, you mean a person who relies on someone else for support.

“The benefit may cover an employee's dependant.”
Watch for

is dependant on; an employee's dependent

Usage note

Check the defined spelling in the relevant policy or legislation before changing a formal term.

Source checked 2026-08-10 ↗ (opens in a new tab)

Continual / Continuous / Continued

Usage

Continual usually emphasises repeated recurrence; continuous emphasises an unbroken sequence; continued simply means carried on or persisting.

Continual

You want to emphasise that something recurs repeatedly, often with breaks.

“Continual changes made the guidance difficult to follow.”

Continuous

You want to emphasise that something proceeds without interruption.

“The service requires continuous monitoring.”

Continued

You simply mean something persists or carries on, without specifying whether there are breaks.

“The programme needs continued leadership support.”
Watch for

continuous interruptions; continual operation; continued monitoring

Usage note

The meanings overlap in established usage, so treat this as a precision choice rather than a hard error rule.

Source checked 2026-08-10 ↗ (opens in a new tab)

Alternate / Alternative

Usage

Alternate is clearest for taking turns; alternative is clearest for another choice.

Alternate

You mean occurring by turns, or every other one.

“The teams chair the meeting in alternate months.”

Alternative

You mean another available choice or option.

“The paper proposes an alternative delivery model.”
Watch for

alternative weeks; an alternate approach

Usage note

Alternate is also established for a substitute or another choice, especially in American English. Use the distinction when ambiguity matters.

Source checked 2026-08-10 ↗ (opens in a new tab)

Historic / Historical

Different meanings

Historic usually means historically important; historical means related to history or the past more generally.

Historic

You mean important or notable in history.

“The agreement marked a historic change in regional cooperation.”

Historical

You mean relating to history or to past records and events generally.

“The analysis uses historical demand data.”
Watch for

historic data; a historical milestone

Source checked 2026-08-10 ↗ (opens in a new tab)

Staff / Staff member / staff members

Usage

Use staff for the workforce collectively and staff member when referring to one person. Use staff members when a precise count matters.

Staff

You mean the employees of an organisation collectively.

“Staff were briefed before the service announcement.”

Staff member / staff members

You are counting or referring to individual employees.

“Three staff members will support the event.”
Watch for

a staff; each staff; every staff; three staffs

Usage note

Staffs can be correct when referring to separate groups of employees, such as the staffs of two agencies. It is usually not the plural for individual employees.

Source checked 2026-08-11 ↗ (opens in a new tab)

Feedback / Comment / comments / Piece / item of feedback

Usage

Feedback is normally uncountable. Use comments for countable observations, or pieces or items of feedback when you need to count feedback.

Feedback

You mean reactions or evaluative information collectively.

“We received helpful feedback from frontline teams.”

Comment / comments

You mean one or more countable observations or responses.

“The reviewer left three comments on the draft.”

Piece / item of feedback

You need to count an individual point of feedback.

“One item of feedback concerned the approval timeline.”
Watch for

a feedback; two feedbacks; many feedbacks

Source checked 2026-08-11 ↗ (opens in a new tab)

Information / Piece / item of information

Usage

Information is uncountable in standard workplace English. Use a piece or item of information for one fact and pieces or items for several.

Information

You mean facts or details collectively.

“The briefing contains confidential information.”

Piece / item of information

You need to count an individual fact or detail.

“The form asks for five items of information.”
Watch for

an information; a useful information; informations

Source checked 2026-08-11 ↗ (opens in a new tab)

Equipment / Piece / item of equipment

Usage

Equipment is normally uncountable. Use a piece or item of equipment for one device and pieces or items for several.

Equipment

You mean the tools, machines or devices needed for a purpose collectively.

“The team needs new video-conferencing equipment.”

Piece / item of equipment

You need to count an individual device or tool.

“Each item of equipment must carry an asset tag.”
Watch for

an equipment; three equipments; new equipments

Source checked 2026-08-11 ↗ (opens in a new tab)

Responsible / Accountable

Different meanings

Responsible usually identifies who does or manages the work; accountable identifies who ultimately owns and answers for the result.

Responsible

A person or team performs the work or carries a duty.

“The operations team is responsible for preparing the migration plan.”

Accountable

A person has final ownership and answers for the result.

“The programme director is accountable for the final outcome.”
Watch for

responsible and accountable; ultimately responsible; multiple accountable owners

Usage note

Organisations define governance roles differently. If a RACI or formal role description applies, use its defined meanings consistently.

Source checked 2026-08-11 ↗ (opens in a new tab)

Approve / Approve of

Usage

Approve something means formally authorise it; approve of something means have a favourable opinion of it.

Approve

You mean formally authorise, accept or sanction something.

“The board approved the revised budget.”

Approve of

You mean regard something as good, acceptable or morally right.

“Most respondents approved of the simpler application process.”
Watch for

approve of the budget; approved the behaviour

Source checked 2026-08-11 ↗ (opens in a new tab)

Output / Outcome / Impact

Different meanings

Outputs are what the work produces; outcomes are the resulting changes or benefits; impacts are broader or longer-term effects.

Output

You mean the immediate product, service or deliverable produced by an activity.

“The project's outputs include a prototype and a training guide.”

Outcome

You mean the change or benefit that follows from using the output.

“The intended outcome is a shorter application journey.”

Impact

You mean a broader or longer-term effect on people, systems or society.

“The evaluation will assess the policy's impact on household resilience.”
Watch for

deliver an outcome; outcome: publish report; impact: staff trained

Usage note

Results frameworks sometimes define these levels differently. State the framework and use its definitions consistently.

Source checked 2026-08-11 ↗ (opens in a new tab)

Effectiveness / Efficiency

Different meanings

Effectiveness asks whether the work achieved the intended result; efficiency asks how well it used time, money and other resources.

Effectiveness

You are judging whether an intervention achieved its objectives or intended results.

“The evaluation examines the campaign's effectiveness in increasing uptake.”

Efficiency

You are judging how economically resources were converted into results.

“Automation improved efficiency by reducing processing time per case.”
Watch for

efficient at achieving the outcome; effective use of resources

Source checked 2026-08-11 ↗ (opens in a new tab)

Must / Need to / Should / May

Usage

Use must for obligations, need to for necessary process steps, should for recommendations and may for permission or options.

Must

A requirement is mandatory and failure to comply has a consequence.

“Applicants must submit proof of identity.”

Need to

A step is practically necessary to complete a task or process.

“You need to create an account before saving a draft.”

Should

You are making a recommendation rather than imposing a requirement.

“Teams should review access permissions every quarter.”

May

An action is permitted, possible or optional.

“Applicants may attach supporting documents.”
Watch for

should as a requirement; may as an obligation; must for an optional step

Usage note

In legislation, contracts and regulated policies, modal verbs may have defined legal effects. Follow the governing drafting standard.

Source checked 2026-08-11 ↗ (opens in a new tab)

Review / Revise

Different meanings

Review means examine or assess; revise means make changes. A reviewer may recommend revisions, but a review does not itself promise an edit.

Review

You mean examine or assess something, which may or may not lead to changes.

“Legal will review the draft by Thursday.”

Revise

You mean change or edit something to improve, correct or update it.

“The policy team will revise the draft after consultation.”
Watch for

review and update; revise without changes; reviewed version

Source checked 2026-08-11 ↗ (opens in a new tab)

Biannual / Biennial

Different meanings

Biannual means twice a year; biennial means every two years. For schedules, writing the frequency explicitly is often clearest.

Biannual

Something happens twice a year.

“The committee conducts a biannual access review.”

Biennial

Something happens once every two years.

“The biennial survey will next run in 2028.”
Watch for

biannual every two years; biennial twice a year

Source checked 2026-08-11 ↗ (opens in a new tab)

Personal / Personnel

Different meanings

Personal relates to an individual or private matter; personnel means employees or staff collectively.

Personal

You mean private, individual or relating to a particular person.

“Do not store personal information in the shared folder.”

Personnel

You mean the people employed by an organisation or assigned to a function.

“Authorised personnel may enter the control room.”
Watch for

authorised personal; personnel information; a personnel

Source checked 2026-08-11 ↗ (opens in a new tab)

Set up / Setup

Different forms

Set up is the verb; setup is the noun or adjective. If you can put “to” before it, use two words.

Set up

You need the verb meaning arrange, configure or establish.

“Set up multifactor authentication before launch.”

Setup

You need the noun or adjective for an arrangement or configuration.

“The setup guide explains the initial account configuration.”
Watch for

setup the account; set-up the account; complete the set up

Source checked 2026-08-11 ↗ (opens in a new tab)

Back up / Backup

Different forms

Back up is the verb; backup is the noun or adjective.

Back up

You need the verb meaning make a copy for recovery or provide support.

“Back up the database before applying the migration.”

Backup

You need the noun or adjective for a recovery copy, system or role.

“Store the encrypted backup in a separate region.”
Watch for

backup the database; create a back up; back-up the files

Source checked 2026-08-11 ↗ (opens in a new tab)

Roll out / Rollout

Different forms

Roll out is the verb; rollout is the noun or adjective.

Roll out

You need the verb meaning introduce or deploy something.

“We will roll out the new case system in phases.”

Rollout

You need the noun or adjective for the introduction or deployment.

“The rollout plan includes training and support.”
Watch for

rollout the service; during the roll out; roll-out the service

Source checked 2026-08-11 ↗ (opens in a new tab)

Adapt / Adopt

Different meanings

Adapt means modify to fit; adopt means take up or begin using. A team can adopt a framework and then adapt it to local needs.

Adapt

You mean change something so that it suits a new purpose or situation.

“The team adapted the template for procurement reviews.”

Adopt

You mean formally take up, accept or begin using something.

“The agency adopted the new records standard.”
Watch for

adapt a policy without changes; adopt the template to local needs

Source checked 2026-08-11 ↗ (opens in a new tab)

Adverse / Averse

Different meanings

Adverse describes an unfavourable thing or effect; averse describes someone's attitude and is usually followed by to.

Adverse

You mean harmful, unfavourable or contrary to an interest.

“The change had no adverse effect on service availability.”

Averse

A person is opposed or strongly disinclined to something.

“The steering group is not averse to extending the pilot.”
Watch for

adverse to the proposal; averse effect; risk adverse

Source checked 2026-08-11 ↗ (opens in a new tab)

Economic / Economical

Different meanings

Economic relates to the economy; economical means thrifty, efficient in cost or not wasteful.

Economic

You mean relating to the economy, finance, trade or production.

“The paper assesses the proposal's economic impact.”

Economical

You mean inexpensive to use or avoiding waste.

“Shared hosting is the more economical option for the pilot.”
Watch for

economical policy; economic to operate; an economic option

Source checked 2026-08-11 ↗ (opens in a new tab)

Prospective / Perspective

Different meanings

Prospective looks forward to a possible future status; perspective is a viewpoint or way of seeing something.

Prospective

You mean expected, likely or being considered for a future role or relationship.

“Prospective suppliers may attend the briefing.”

Perspective

You mean a viewpoint, way of considering something or sense of proportion.

“The report presents the issue from the user's perspective.”
Watch for

from a prospective; perspective suppliers; customer prospective

Source checked 2026-08-11 ↗ (opens in a new tab)

Prescribe / Proscribe

Different meanings

Prescribe sets or recommends what should be done; proscribe forbids what must not be done.

Prescribe

You mean set down, recommend or require a rule, course or treatment.

“The standard prescribes a minimum retention period.”

Proscribe

You mean forbid, prohibit or condemn something.

“The policy proscribes using personal accounts for official records.”
Watch for

proscribe a treatment; prescribe the activity; proscribed requirement

Source checked 2026-08-11 ↗ (opens in a new tab)

Waive / Wave

Different meanings

Waive means give up or refrain from enforcing; wave refers to a movement, signal or surge.

Waive

You mean voluntarily give up a right or choose not to enforce a requirement.

“The approving officer may waive the fee in exceptional cases.”

Wave

You mean move to and fro, signal with a hand, or describe a surge or sequence.

“The second wave of the rollout begins in September.”
Watch for

wave the fee; waive goodbye; fee waver

Source checked 2026-08-11 ↗ (opens in a new tab)

Allude to / Refer to

Different meanings

Allude to means hint at indirectly; refer to means mention or point to directly.

Allude to

You mean mention something indirectly or hint at it.

“The minutes allude to concerns raised in the closed session.”

Refer to

You mean mention, identify or direct attention to something explicitly.

“The report refers to the audit findings in section 4.”
Watch for

alluded the report; alluded directly; referred indirectly

Source checked 2026-08-11 ↗ (opens in a new tab)

Compare to / Compare with

Usage

Compare to often draws an analogy; compare with often examines similarities and differences. In everyday usage they overlap, so prioritise clarity over enforcing a rigid rule.

Compare to

You are likening one thing to another or emphasising a resemblance.

“The Chair compared the recovery effort to a relay race.”

Compare with

You are examining similarities and differences, especially in analysis.

“Compare this quarter's processing time with the previous quarter's.”
Watch for

compared against; compared to the baseline; compare this with a relay race

Usage note

Use the same construction for comparable measures throughout a report.

Source checked 2026-08-11 ↗ (opens in a new tab)

Already / All ready

Different forms

Already relates to time; all ready means fully prepared.

Already

You mean before now, before a stated time or sooner than expected.

“The finance team has already approved the request.”

All ready

You mean everyone or everything is fully prepared.

“The migration team is all ready for the cutover.”
Watch for

already for launch; all ready completed; users are already

Source checked 2026-08-11 ↗ (opens in a new tab)

Altogether / All together

Different forms

Altogether means completely or in total; all together means collectively or in one place.

Altogether

You mean completely, on the whole or in total.

“The revised workflow removes the manual check altogether.”

All together

You mean everyone or everything in one place or acting as a group.

“The regional teams will meet all together in October.”
Watch for

remove it all together; teams met altogether; altogether in one room

Source checked 2026-08-11 ↗ (opens in a new tab)

Forgo / Forego

Different meanings

Forgo means do without; forego traditionally means go before, as in foregoing. Forego is also an accepted variant spelling of forgo, but the distinction can improve clarity.

Forgo

You mean go without, give up or choose not to have something.

“The team agreed to forgo the optional review stage.”

Forego

You mean go before or precede, most often in the fixed form foregoing.

“The foregoing analysis supports the recommendation.”
Watch for

forego the fee; forgoing paragraph; foregoing the benefit

Usage note

If foregoing sounds legalistic, replace it with previous or above.

Source checked 2026-08-11 ↗ (opens in a new tab)

Verify / Validate

Usage

In systems and assurance work, verification asks whether the solution meets its specifications; validation asks whether it serves the intended use.

Verify

In a technical or assurance process, you are checking that specified requirements were met or that something was built correctly.

“The test team will verify the release against the approved requirements.”

Validate

In a technical or assurance process, you are checking that the result meets its intended use and user needs.

“Pilot users will validate that the service supports the real application journey.”
Watch for

verify user needs; validate against specifications; verification and validation

Usage note

Outside formal technical contexts, verify and validate have broader overlapping meanings. Use the definitions set by your profession, standard or assurance framework.

Source checked 2026-08-11 ↗ (opens in a new tab)

Access / Assess

Different meanings

Access means enter, retrieve or use; assess means evaluate or judge. You can access a system in order to assess its performance.

Access

You mean enter, retrieve or use a place, system, service or information.

“Only authorised officers may access the case records.”

Assess

You mean evaluate the quality, significance, value or risk of something.

“The review team will assess the privacy risks before launch.”
Watch for

access the risk; access whether; assess the portal to submit

Source checked 2026-08-11 ↗ (opens in a new tab)

Estimate / Forecast / Projection

Usage

An estimate infers a population value from sample data for a previous reference period; a forecast states an expected future value; a projection shows a conditional future value under stated assumptions.

Estimate

You are inferring a population value for a previous reference period from data collected from a sample.

“The survey estimate puts service uptake in the previous quarter at 62%.”

Forecast

You are stating what you expect is likely to happen, based on evidence and assumptions about future events.

“The finance team forecasts a 4% increase in operating costs next year.”

Projection

You are showing what would happen if a stated set of assumptions or scenarios holds.

“Under the high-demand scenario, applications are projected to reach 80,000 by 2030.”
Watch for

projection presented as a prediction; forecast without assumptions; estimate without a reference period

Usage note

Disciplines define these terms differently. State the reference period, evidence, assumptions and uncertainty instead of relying on the label alone.

Source checked 2026-08-11 ↗ (opens in a new tab)

Follow up (verb) / Follow-up (noun or adjective)

Different forms

Follow up is the verb; follow-up is the noun or adjective.

Follow up (verb)

You need the verb meaning pursue something or take further action.

“The service team will follow up on unresolved applications.”

Follow-up (noun or adjective)

You need the noun or adjective for a subsequent action, message, meeting or check.

“The follow-up meeting will confirm the owners and deadlines.”
Watch for

follow-up on the request; a follow up meeting; send a follow up

Source checked 2026-08-11 ↗ (opens in a new tab)

Disburse / Reimburse / Refund

Different meanings

Disburse means pay out approved funds; reimburse means repay an expense already incurred; refund means return money previously paid or collected.

Disburse

An organisation formally pays out approved funds from an account or programme.

“The agency will disburse the grant after accepting the agreement.”

Reimburse

You are repaying someone for an eligible expense they have already incurred.

“The department will reimburse officers for approved travel expenses.”

Refund

You are returning money that someone previously paid, such as an overpayment or payment for a cancelled service.

“The agency will refund the excess application fee.”
Watch for

reimburse the grant; refund a travel claim; disburse an overpayment

Usage note

Financial rules may give these terms narrower accounting meanings. Follow the governing scheme or finance instructions when recording a transaction.

Source checked 2026-08-11 ↗ (opens in a new tab)

Rationale / Rational

Different forms

Rationale is a noun meaning the underlying reasons; rational is an adjective meaning based on reason. Explain the rationale for a rational decision.

Rationale

You need the noun for the reasons or reasoning behind a decision, proposal or action.

“The paper explains the rationale for extending the pilot.”

Rational

You need the adjective meaning based on reason, logical or sensible.

“Extending the pilot is a rational response to the new evidence.”
Watch for

the rational for; the rational behind; a rationale decision

Source checked 2026-08-11 ↗ (opens in a new tab)

Confidentiality / Sensitivity

Different meanings

Confidentiality concerns authorised access and disclosure; sensitivity is the broader judgement about how much protection information needs.

Confidentiality

You mean protecting information from access or disclosure that is not authorised.

“Limit the case file to approved recipients to preserve confidentiality.”

Sensitivity

You mean the importance of information and the level of protection it needs.

“Assess the document's sensitivity before choosing its handling controls.”
Watch for

sensitive therefore confidential; confidentiality level when sensitivity is meant; non-confidential therefore non-sensitive

Usage note

Information may be sensitive because disclosure, alteration, loss or unavailability would cause harm. Do not use confidential as a general synonym for sensitive.

Source checked 2026-08-11 ↗ (opens in a new tab)

Cost savings / Cost avoidance

Different meanings

Cost savings reduce an existing or budgeted cost; cost avoidance prevents a new or higher future cost.

Cost savings

You have a measurable reduction in existing or budgeted expenditure with a direct financial effect.

“The consolidated licence reduced the approved annual budget by $80,000.”

Cost avoidance

You prevented or reduced a new future cost that would otherwise have been incurred.

“Negotiation prevented the supplier's proposed $80,000 price increase.”
Watch for

avoided increase reported as savings; savings without a baseline; combined benefits without classification

Usage note

State the baseline, time period, calculation method and whether savings are cashable. Do not add savings and avoidance figures together without explaining their different financial effects.

Source checked 2026-08-11 ↗ (opens in a new tab)

OKR / Key result / KPI

Different meanings

An OKR is the goal-setting framework; a key result is one measurable outcome within it; a KPI monitors performance over time.

OKR

You mean the goal-setting framework that combines an objective with measurable key results.

“The team's OKR pairs the service-improvement objective with three measurable outcomes.”

Key result

You mean a measurable outcome showing progress towards one objective in an OKR.

“Reduce median processing time from ten days to five by the end of Q4.”

KPI

You mean a metric used to monitor ongoing performance against a specific objective or expected result.

“Monthly service availability remains an operations KPI.”
Watch for

OKR used for a single metric; task presented as a key result; KPI and key result treated as always interchangeable

Usage note

A KPI can serve as a key result when it is attached to a defined target and timeframe. An activity or deliverable is not a key result unless it expresses the outcome to achieve.

Source checked 2026-08-11 ↗ (opens in a new tab)

Financial year / Year of Assessment / Basis period

Different meanings

The financial year is the accounting period; the basis period is the income period assigned to a tax assessment; the Year of Assessment is the tax year label.

Financial year

You mean the annual accounting period for which an organisation prepares its accounts.

“The company's financial year ends on 30 June.”

Year of Assessment

You mean the year in which income is assessed to tax in Singapore.

“Income earned in the financial year 2025 is generally assessed in YA 2026.”

Basis period

You mean the period of income and expenses used to calculate tax for a particular YA.

“The basis period for YA 2026 is the company's financial year ending in 2025.”
Watch for

AY when YA is intended; YA used for the income-earning period; financial year and Year of Assessment given the same year without explanation

Usage note

In Singapore tax writing, use the exact form Year of Assessment and the abbreviation YA. Do not reverse the words or substitute AY.

Source checked 2026-08-11 ↗ (opens in a new tab)

Biweekly / Fortnightly / Twice weekly

Usage

Biweekly can mean every two weeks or twice a week. Use fortnightly or every two weeks for the first meaning, and twice weekly or twice a week for the second.

Biweekly

Only when your audience has an established convention or the schedule is immediately clarified.

“The biweekly meeting takes place every other Wednesday.”

Fortnightly

You mean once every two weeks.

“The working group meets fortnightly on alternate Wednesdays.”

Twice weekly

You mean two times each week.

“The operations call is held twice weekly, on Tuesday and Friday.”
Watch for

biweekly without clarification; fortnightly used for twice a week; ambiguous recurring deadline

Usage note

Every two weeks is often clearer than fortnightly for international audiences. State the actual days when the schedule affects deadlines, payroll or attendance.

Source checked 2026-08-11 ↗ (opens in a new tab)

Bimonthly / Twice monthly / Every two months

Usage

Bimonthly can mean every two months or twice a month. Write the intended frequency explicitly.

Bimonthly

Only when your audience has an established convention or the schedule is immediately clarified.

“The bimonthly report is issued every two months.”

Twice monthly

You mean two times in each calendar month.

“Payments are processed twice monthly, on the 15th and final working day.”

Every two months

You mean once in each two-month interval.

“The steering committee meets every two months.”
Watch for

bimonthly without clarification; twice monthly treated as every two weeks; ambiguous payment schedule

Usage note

Twice monthly is not identical to every two weeks: a twice-monthly schedule has 24 occurrences a year, while an every-two-weeks schedule usually has 26.

Source checked 2026-08-11 ↗ (opens in a new tab)

Every day / Everyday

Different forms

Every day is a two-word time expression meaning each day; everyday is a one-word adjective meaning ordinary or routine.

Every day

You mean on each day or daily.

“The service team reviews urgent cases every day.”

Everyday

You need an adjective meaning ordinary, usual or routine.

“Clear records support everyday operations.”
Watch for

reviewed everyday; an every day task; on an everyday basis when every day is meant

Source checked 2026-08-11 ↗ (opens in a new tab)

One year / three years (duration) / One-year / three-year (compound modifier)

Different forms

Use the plural noun without a hyphen for a duration, but a singular year in a hyphenated compound modifier before a noun.

One year / three years (duration)

The phrase states how long something lasts.

“The pilot will run for three years.”

One-year / three-year (compound modifier)

The phrase comes before a noun and jointly describes it.

“The agency approved a three-year pilot.”
Watch for

a three years plan; a three year plan; the programme lasted three-year

Usage note

The same pattern applies to other measurements: a six-month review, but the review lasted six months.

Source checked 2026-08-11 ↗ (opens in a new tab)

Amount / Number / Quantity

Usage

Use amount with uncountable nouns and number with countable nouns. Quantity is more formal and can be used with either, depending on context.

Amount

You are referring to something uncountable or measured as a mass.

“The team reduced the amount of time needed for each review.”

Number

You are referring to separate people or things that can be counted.

“The number of unresolved cases fell in July.”

Quantity

You need a more formal term that can apply to countable or uncountable things, often with a size adjective.

“The warehouse received a large quantity of supplies.”
Watch for

amount of applications; number of time; quantity used when a plainer amount or number would do

Source checked 2026-08-11 ↗ (opens in a new tab)

A number of … are / The number of … is

Usage

A number of means several and normally takes a plural verb; the number of refers to one total and takes a singular verb.

A number of … are

A number of means several or many and is followed by a plural noun and plural verb.

“A number of applications are still under review.”

The number of … is

The subject is the single total or count, so it takes a singular verb.

“The number of applications is increasing.”
Watch for

a number of cases is; the number of cases are; the number of cases have increased

Source checked 2026-08-11 ↗ (opens in a new tab)

Discuss something / Discuss about something

Usage

Discuss normally takes a direct object and does not need about. Use discuss the issue or talk about the issue.

Discuss something

You mean talk about or consider a subject; discuss takes the subject directly as its object.

“The committee will discuss the proposal tomorrow.”

Discuss about something

Avoid this form in standard formal English; use discuss something or talk about something.

“Replace 'discuss about the proposal' with 'discuss the proposal'.”
Watch for

discuss about; discussed about; discussion the issue when discuss is meant

Source checked 2026-08-11 ↗ (opens in a new tab)

With regard to / Regarding / With regards to

Usage

Use with regard to or, more simply, regarding. Avoid with regards to in formal writing.

With regard to

You need a formal phrase meaning about or concerning.

“With regard to the revised deadline, all teams have agreed.”

Regarding

You want the shortest clear formal alternative.

“Regarding the revised deadline, all teams have agreed.”

With regards to

Avoid this blended form in formal workplace writing; regards is appropriate for greetings such as send my regards.

“Replace 'with regards to the deadline' with 'regarding the deadline'.”
Watch for

with regards to; regarding to; regards used as a general replacement for regard

Usage note

The plural regards is correct when it means greetings or good wishes, and as regards is also an established phrase.

Source checked 2026-08-11 ↗ (opens in a new tab)

E.g. / for example / I.e. / that is

Different meanings

E.g. means for example and introduces instances; i.e. means that is and restates the meaning. Prefer the English words in general workplace content.

E.g. / for example

You are introducing one or more examples rather than a complete restatement.

“Use a clear frequency, for example, every two weeks.”

I.e. / that is

You are restating, defining or clarifying exactly what you mean.

“Use an unambiguous frequency—that is, state the exact interval.”
Watch for

i.e. before a non-exhaustive list; e.g. before an exact restatement; eg or ie where accessibility matters

Usage note

If the shortened forms are necessary, retain the full stops. Do not use either expression when such as or including already introduces an incomplete list.

Source checked 2026-08-11 ↗ (opens in a new tab)

Lie / lay / lain / Lay / laid / laid

Different forms

Lie means recline and takes no object; lay means put something down and takes an object. The confusing overlap is that the past tense of lie is lay.

Lie / lay / lain

The subject rests or is in a flat position without acting on an object.

“The signed copy lay on the desk overnight.”

Lay / laid / laid

Someone or something puts an object down; lay must have an object.

“Lay the signed copy on the desk.”
Watch for

lay down when no object follows; laid on the desk when the subject reclined; layed instead of laid

Usage note

Lie meaning say something untrue is a different regular verb: lie, lied, lied.

Source checked 2026-08-11 ↗ (opens in a new tab)

FYs / KPIs / OKRs (plurals) / FY's / KPI's / OKR's (possessives)

Different forms

Add s without an apostrophe to make an abbreviation plural. Use apostrophe-s only for a singular possessive, and an apostrophe after s for a plural possessive, such as KPIs' owners.

FYs / KPIs / OKRs (plurals)

You mean more than one financial year, KPI or OKR.

“The paper compares KPIs across three FYs.”

FY's / KPI's / OKR's (possessives)

A singular abbreviation possesses or is associated with something; the apostrophe does not make it plural.

“Each KPI's owner must confirm the KPI's definition.”
Watch for

KPI's when several KPIs are meant; FY's used as a plural; OKR's listed without possession

Source checked 2026-08-11 ↗ (opens in a new tab)

Fortnightly / Twice monthly

Different meanings

Fortnightly means every two weeks; twice monthly means twice in each calendar month. They are not interchangeable.

Fortnightly

Something happens once every two weeks.

“The fortnightly payroll is processed every other Friday.”

Twice monthly

Something happens twice in each calendar month, usually on stated dates.

“Claims are paid twice monthly, on the 15th and final working day.”
Watch for

fortnightly treated as twice monthly; two pay dates every month described as fortnightly; schedule without actual dates

Usage note

A fortnightly schedule normally produces 26 occurrences a year, while a twice-monthly schedule produces 24. State the dates when timing affects pay, deadlines or attendance.

Source checked 2026-08-11 ↗ (opens in a new tab)

In regard to / In regards to

Usage

Use in regard to without s, or use the plainer regarding. Avoid in regards to in formal writing.

In regard to

You need a formal phrase meaning in relation to or about.

“I am writing in regard to your application.”

In regards to

Avoid this blended form in formal workplace writing; use in regard to or regarding.

“Replace 'in regards to your application' with 'regarding your application'.”
Watch for

in regards to; in regard of; regarding to

Usage note

In regards to occurs in modern informal usage, but many formal style authorities still prefer singular regard in this expression.

Source checked 2026-08-11 ↗ (opens in a new tab)