Topic: CHRONOLOGY
| Language: | Old English |
| Origin: | niht |
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night S1 W1
[uncountable and countable]
[uncountable and countable]1 the dark part of each 24-hour period when the sun cannot be seen and when most people sleep [≠ day]COLLOCATIONS 
last night at night (=when it is night) in/during the night (=at a particular point in the night) in the middle of the night all night (long) by night (=at night, rather than in the day) at this time of night (=used when you are surprised) in/at the dead of night literary (=in the middle of the night when it is quiet) spend/stay a night somewhere stay the night (=sleep at the house of someone you are visiting) night train/bus/flight night falls written (=it starts to become dark) the night air the night sky
It was a cold moonlit night.
when it is dark
TMC
last night at night (=when it is night) in/during the night (=at a particular point in the night) in the middle of the night all night (long) by night (=at night, rather than in the day) at this time of night (=used when you are surprised) in/at the dead of night literary (=in the middle of the night when it is quiet) spend/stay a night somewhere stay the night (=sleep at the house of someone you are visiting) night train/bus/flight night falls written (=it starts to become dark) the night air the night sky
It was a cold moonlit night.2 the time during the evening until you go to bed :
We had a really good meal last night.
We were on our way back from a night out (=an evening when you go to a party, restaurant, theatre etc) at the theatre.
evening
TMC
We had a really good meal last night.
We were on our way back from a night out (=an evening when you go to a party, restaurant, theatre etc) at the theatre. quiz night/student night etc (=an evening when a particular event happens, especially at a bar, club etc)
4 used to say goodbye to someone when it is late in the evening or when they are going to bed [= good night]:
Night! See you tomorrow!
night!
spoken
Night! See you tomorrow!5 used to say goodbye to someone, especially a child, when they are going to bed
night night!
spoken6 all the time :
The store is guarded day and night.
We had to work night and day to get it finished.
night and day/day and night
The store is guarded day and night.
We had to work night and day to get it finished.9 the first performance of a play or show [↪ premiere]:
We saw 'Riverdance' on its opening night.
first night/opening night
APTAMF
We saw 'Riverdance' on its opening night.10 to sleep with someone and have sex with them :
And you thought we spent the night together?
spend the night with somebody/spend the night together
And you thought we spent the night together?12 to go to bed later or earlier than usual :
I think I'll have an early night. ➔ late-night
(have a) late/early night
I think I'll have an early night.13 at the end of the day, just before you go to bed :
You should water plants either first thing in the morning or last thing at night.
last thing at night
You should water plants either first thing in the morning or last thing at night.