I.e.

Example: Use an exact interval—that is, state the actual dates.

Also known as: ie, id est, that is

Context: Prefer that is in general workplace content. If i.e. is necessary, retain both full stops.

A Latin shortened form meaning that is, used to restate, define or clarify exactly what is meant.

Example: Use an unambiguous frequency—that is, state the exact interval.

Also known as: ie, that is

Context: Prefer that is in general workplace content. If the shortened form is necessary, retain both full stops.