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Definition of traitor noun from the Oxford Advanced Learner's Dictionary

traitor

noun
 
/ˈtreɪtə(r)/
 
/ˈtreɪtər/
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  1. traitor (to somebody/something) a person who betrays their friends, their country, etc. by giving away secrets about them, by lying to or about them or by doing other things that will harm them
    • He was seen as a traitor to the socialist cause.
    • She denied that she had turned traitor (= become a traitor).
    • He turned traitor and joined the opposition.
    Topics Crime and punishmentc2
    Oxford Collocations Dictionaryverb + traitor
    • turn
    • brand somebody as
    • call somebody
    preposition
    • traitor to
    See full entry
    Word OriginMiddle English: from Old French traitour, from Latin traditor, from tradere ‘hand over’.
See traitor in the Oxford Advanced American Dictionary

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