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English definition of “goodbye”

goodbye

noun [C]     /ɡʊdˈbaɪ/
the words or actions that are used when someone leaves or is left : Don't go without saying goodbye to me, will you? She kissed her children goodbye before leaving for work . We said our goodbyes, and left . I hate long drawn-out goodbyes (= acts of leaving ).Welcoming, greeting and greetings Grammar:Greetings and farewells: hello, goodbye, Happy New YearGrammar:Saying helloWhen we see someone we know, we usually exchange greetings:Grammar:Saying goodbyeWhen we leave people, we usually say something as we leave:
(Definition of goodbye noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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