day

Definition

A period of 24 hours, usually from midnight to midnight, that we use to measure time. It can also mean the time from sunrise to sunset or a particular date.

Usage & Nuances

Commonly used in everyday speech and writing. Often combined with numbers ('three days', 'last day'). 'Day' can refer to daytime (light hours) or a calendar date depending on context. Be careful not to confuse with 'date' which is usually specific calendar day. Informal phrases include: 'day off', 'day care'.

Example Sentences