day
//deɪ//
Noun
daySingular
daysPlural
1
A period of 24 hours, especially from midnight to midnight, representing one rotation of the Earth on its axis.
There are seven days in a week.
2
The period of light between sunrise and sunset; the time when the sun is above the horizon.
It's warm during the day but cold at night.
3
A particular period of time in history or in someone's life.
In my grandfather's day, there were no computers.
4
The part of a day devoted to work or a particular activity.
I had a busy day at the office.