goodbye

US /ˌɡʊd'baɪ/

UK /ˌɡʊd'baɪ/

A1
n.NounSomething you say when you leave someone
Okay, goodbye, I will see you tomorrow at seven o'clock
interj.InterjectionA farewell remark; a way of saying farewell.
Goodbye, I'm off to work now!