day

1. day (noun) — sense 1

Definition: The time when the Sun is above the horizon and it lights the sky.

Example: day and night;  I work at night and sleep during the day.

2. day (noun) — sense 2

Definition: A period of time equal or almost equal to a full day-night cycle, being 24 hours long.

Example: Holonyms: week < megasecond < fortnight < month < year < gigasecond < century < kiloannum, kiloyear, millennium < terasecond < mega-annum, megayear < petasecond < giga-annum, gigayear < exasecond < zettasecond < yottasecond < ronnasecond < quettasecond

3. day (noun) — sense 3

Definition: A period of time equal or almost equal to a full day-night cycle, being 24 hours long.: The time taken for the Sun to seem to be in the same place in the sky twice; a solar day.

4. day (verb) — sense 1

Definition: To spend a day (in a place).

Example: I nighted and dayed in Damascus town[.]