tonight · adverb /təˈnɑɪt/
tonight
A1 during the night of the present day
Dictionary examples:
I hope you sleep well tonight.
Tonight there's going to be a party.
Learner example:
I need my cellphone because my boss will call me tonight! (Key English Test; A2; Portuguese)
tonight · noun U /təˈnɑɪt/
tonight
A2 the night of the present day
Dictionary examples:
Tonight will be my first opportunity to meet her.
Tonight's meeting will take place in the main school hall.