someone acting as an informer or decoy for the police

[ Syn: snitch , snitcher , stoolpigeon , stool pigeon , stoolie , sneak , sneaker , canary ]

take the place of work of someone on strike

[ Syn: scab , rat , blackleg ]

confess to a punishable or reprehensible deed, usually under pressure

[ Syn: confess , squeal ]