The meaning of GOODBYE is a concluding remark or gesture at parting —often used interjectionally. How to use goodbye in a sentence.

GOODBYE definition: farewell (a conventional expression used at parting). See examples of goodbye used in a sentence.

Idiom goodbye to something (Definition of goodbye from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Jan 6, 2026 · Noun goodbye (plural goodbyes) An utterance of goodbye, the wishing of farewell to someone.

Definition of goodbye exclamation in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

“Goodbye” is the most common phrase because it’s correct as both a noun and adjective. We might also find the hyphenated form of “good-bye” is used in some cases, but only when a …

1. An acknowledgment at parting, especially by saying "goodbye." 2. An act of parting or leave-taking: many sad goodbyes.

goodbye, n., int., & adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary

You say ' Goodbye ' to someone when you or they are leaving, or at the end of a phone conversation.

goodbye (interjection) goodbye (noun) kiss (verb) 1 goodbye interjection also goodby /gʊd ˈbaɪ/ Britannica Dictionary definition of GOODBYE — used to express good wishes when someone …