betray

Meanings

• reveal unintentionally
  • "Her smile betrayed her true feelings"
• deliver to an enemy by treachery
  • "The spy betrayed his country"
• disappoint, prove undependable to; abandon, forsake
• be sexually unfaithful to one's partner in marriage
• give away information about somebody
• cause someone to believe an untruth

Synonyms

bewray, cheat, cheat on, cuckold, deceive, denounce, fail, give away, grass, lead astray, rat, sell, shit, shop, snitch, stag, tell on, wander