[exclamation] [esp. UK] and ANZ [informal]Cheers is a friendly expression spoken by people just before they start to drink a usually alcoholic drink.(UK informal) Cheers is also used to mean thank you."I've booked you a seat on the 5 o'clock coach." "Cheers, mate."(UK informal) Cheers is also used to mean goodbye."I'll see you next week then. Bye." "Cheers, see you."
CHEERS
Meaning of CHEERS in English
Cambridge English vocab. Кембриджский английский словарь. 2012