noun
A period of 24 hours, from one midnight to the next.
She stayed for three days.
The package should arrive in two days.
Common phrases & grammar
every day · a few days · for days · day after day
for + number + days
the day after + noun
American English
How to pronounce day
nounA1Very common word
DAY
/deɪ/
One syllable.
A period of 24 hours, from one midnight to the next.
Practice out loudMeanings & examples
noun
The part of a 24-hour period when there is natural light, not night.
We walked along the beach during the day.
The park is open during the day but closed at night.
Good to know
Use during the day for the light hours; use for three days to talk about length of time.
Common phrases & grammar
during the day · all day · day and night · daylight hours
during + the day
all day
noun
A particular date, especially one that is important to a person or group.
The day of the exam finally arrived.
That was the happiest day of my life.
Common phrases & grammar
a special day · an important day · the big day · on that day
on + [day or date]
the + day + of + [event]
nounless common
A period in the past, especially when a person or thing was popular or active.
In my day, people wrote more letters.
Those were the days when this town was full of factories.
Common phrases & grammar
in my day · the old days · the days of youth
in + someone's + day
the days of + noun
Useful expressions
A day when you do not have to work.
I have a day off on Friday.
On each day.
I check my email every day.
In a time long ago.
In the old days, this road was a dirt track.