Definition of “good day” - English Dictionary

british dictionary

“good day” in British English

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good dayexclamation

uk /ˌɡʊd ˈdeɪ/ us /ˌɡʊd ˈdeɪ/ old-fashioned

used as a greeting or when saying goodbye during the day

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(Definition of “good day” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)