n a person who is guilty of treason or treachery, in betraying friends, country, a cause or trust, etc.
(C13: from Old French traitour, from Latin traditor traditor)
traitress fem n
English Collins Dictionary - English Definition & Thesaurus
apostate, back-stabber, betrayer, deceiver, defector, deserter, double-crosser (informal) fifth columnist, informer, Judas, miscreant, quisling, rebel, renegade, snake in the grass (informal) turncoat
defender, loyalist, patriot, supporter
English Collins Dictionary - English synonyms & Thesaurus
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