[deɪ], (Noun)

Definitions:
- each of the twenty-four-hour periods, reckoned from one midnight to the next, into which a week, month, or year is divided, and corresponding to a rotation of the earth on its axis
(e.g: they only met a few days ago)

- a particular period of the past; an era
(e.g: in Shakespeare's day)


Phrases:
- all in a day's work
- any day
- by the day
- call it a day
- day after day
- day and night
- day by day
- day in, day out
- day of reckoning
- from day one
- have all day
- have had one's day
- if one is a day
- in this day and age
- not be someone's day
- oh my days
- one day
- one of those days
- that will be the day
- these days
- those were the days
- to the day
- to this day

Origin:
Old English dæg, of Germanic origin; related to Dutch dag and German Tag