Definition of traitor in English:


Syllabification: trai·tor
Pronunciation: /ˈtrādər


A person who betrays a friend, country, principle, etc. they see me as a traitor, a sellout to the enemy
More example sentences
  • This is not a democratic sport of the people, which has been betrayed by some money-grubbing traitors.
  • My friend thinks we are traitors and sulks and snaps at us if we don't react to situations the same way she does.
  • The liars, the traitors, the thugs, and the outlaws cannot be handed the destiny of a nation like India.
turncoat, defector, deserter;
collaborator, informer, mole, snitch, double agent;
informal snake in the grass, two-timer, rat, scab, fink


Middle English: from Old French traitour, from Latin traditor, from tradere 'hand over'.


turn traitor

Betray a group or person: to think of a man like you turning traitor to his class
More example sentences
  • But there were other, subtler ways of turning traitor, and he felt her coming absence, looming two afternoons a week, as proof of that.
  • One of the key prosecution witnesses at his trial was a trusted comrade who had turned traitor.
  • Others have turned traitor, switching allegiances from synthesisers to guitars.

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