Meaning of "day" in Essential American English Dictionary


noun us /deɪ/

A1 a period of 24 hours:

the days of the week
I saw her the day before yesterday.

A2 the period during the day when there is light from the sun:

a bright, sunny day

A2 the time that you usually spend at work or school:

It’s been a very busy day at the office.
I have a day off (= when I am not at work) tomorrow.
one day

A2 used to talk about something that happened in the past:

One day, I came home to find my windows smashed.
these days

A2 used to talk about the present period of time:

I don’t go out much these days.
for days

B1 for a long time:

I haven’t seen Jack for days.
one day/one of these days

B1 used to talk about something you think will happen in the future:

One of these days I’ll tell her what really happened.
the other day

B1 a few days ago:

I saw Terry in the post office the other day.
day after day

every day for a long period of time:

Day after day they marched through the mountains.

(Definition of “day” from the Webster's Essential Mini Dictionary © Cambridge University Press)