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Synonyms for traitor

noun

betrayer, traducer, deserter, renegade, Judas, quisling, Benedict Arnold, Brutus, fifth columnist, informant, informer, intriguer, spy, double agent, counterspy, collaborator, collaborationist, hypocrite, imposter, plotter, conspirator, turncoat, sneak, recreant, backslider, double-crosser*, wolf in sheep's clothing*, fink*, rat*, stool pigeon*, two-timer*, copperhead*, stoolie*; see also rebel 1.

Antonyms supporter*, follower, partisan.

See traitor in Webster's New World Roget's A-Z Thesaurus II

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