noun
1. one who reveals confidential information in return for money
• Derivationally related forms: ↑blab (for: ↑blabber), ↑blabber (for: ↑blabber), ↑squeal (for: ↑squealer), ↑rat (for: ↑rat), ↑betray, ↑inform (for: ↑informer)
• 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)
• Hyponyms: ↑Judas
Useful english dictionary. 2012.