Akademik

betrayer
noun
1. one who reveals confidential information in return for money
Syn: ↑informer, ↑rat, ↑squealer, ↑blabber
Derivationally related forms: ↑blab (for: ↑blabber), ↑blabber (for: ↑blabber), ↑squeal (for: ↑squealer), ↑rat (for: ↑rat), ↑betray, ↑inform (for: ↑informer)
Hypernyms: ↑informant, ↑source
Hyponyms:
fink, ↑snitch, ↑snitcher, ↑stoolpigeon, ↑stool pigeon, ↑stoolie, ↑sneak, ↑sneaker, ↑canary, ↑nark, ↑copper's nark, ↑supergrass, ↑grass
2. a person who says one thing and does another
Syn: ↑double-crosser, ↑double-dealer, ↑two-timer, ↑traitor
Derivationally related forms: ↑betray, ↑double cross (for: ↑double-crosser)
Hypernyms: ↑deceiver, ↑cheat, ↑cheater, ↑trickster, ↑beguiler, ↑slicker
Hyponyms: ↑Judas

Useful english dictionary. 2012.