Betrayal means "an act of deliberate disloyalty," like when your friend told other people all your secrets. What a betrayal!

Betrayal's root is betray, which comes from the Middle English word bitrayen — meaning "mislead, deceive." Betrayal has to do with destroying someone's trust, possibly by lying. If you start dating your best friend's girlfriend behind his back, that's an act of betrayal. Betrayal can also mean "helping an enemy," such as a person who gives secret information to a country that is at war with his or her own.

Definitions of betrayal
  1. noun
    the quality of aiding an enemy
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    type of:
    subversiveness, traitorousness, treason
    disloyalty by virtue of subversive behavior
  2. noun
    an act of deliberate betrayal
    synonyms: perfidy, treachery, treason
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    double cross, double-crossing
    an act of betrayal
    an act of betrayal
    type of:
    dishonesty, knavery
    lack of honesty; acts of lying or cheating or stealing
DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘betrayal'. Views expressed in the examples do not represent the opinion of or its editors. Send us feedback
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