Meaning of “bye” - Learner’s Dictionary

bye

exclamation us uk /baɪ/ also bye-bye
Bye, see you later.I'm off now. Bye.Bye, Sophie, see you soon.Bye, everyone.Bye, good to see you.

A1 goodbye:

Bye, see you tomorrow.

(Definition of “bye” from the Cambridge Learner’s Dictionary © Cambridge University Press)