hour · noun C /ɑʊr/
hour
A1 a period of 60 minutes
Dictionary examples:
The exam lasted an hour and a half.
The trip took about three hours.
There are 24 hours in a day.
How many hours' sleep do you need?
I'll be back in an hour/in two hours.
Trains leave every hour on the hour.
Learner example:
I study English [for] four hours per week. (Skills for Life (Entry 1); A1; Polish)
hours
B1 a long time
Dictionary examples:
I spent hours doing my homework.
They kept us waiting for hours and hours.
Learner example:
We spent hours talking, but at ten o'clock he [took] me home. (Preliminary English Test; B1; Japanese)
all hours
C1 very late at night, until early morning, or almost all the time
Dictionary example:
Our neighbors play loud music at all hours of the day and night.
Learner example:
This causes traffic jams at all hours of the day. (Certificate in Advanced English; C1; Polish)
the wee hours
C2 the hours between midnight and the time in the morning when people usually begin their day
Dictionary example:
She worked into the wee hours of the morning.
