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English definition of “goodbye”

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goodbye

exclamation uk   /ɡʊdˈbaɪ/ ( informal bye) us  
A1 used when someone leaves or is left: Goodbye Bill! See you next week.
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goodbye

noun [C] uk   /ɡʊdˈbaɪ/ us  
(Definition of goodbye from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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