day
day · noun
Definitions
noun
- 1.
A period of twenty-four hours as a unit of time.
- 2.
The part of the day when there is natural light; daytime.
- 3.
A particular date or time period.
- 4.
The hours spent working during a day.
- 5.
(Usually plural) A period of time; an era.
Forms
plural: days
Related words
Etymology
From Old English dæg meaning "day, lifetime," from Proto-Germanic dagaz. Related to Old Norse dagr, German Tag, and Gothic dags. The Proto-Indo-European root means "to burn, heat."