stool pigeon vs fink

stool pigeon and fink both are nouns.

Word	Noun	Adjective	Verb	Adverb
stool pigeon	Yes	No	No	No
fink	Yes	No	Yes	No

As nouns, stool pigeon and fink are synonyms defined as:

stool pigeon and fink: someone acting as an informer or decoy for the police

Other synonyms of stool pigeon include canary, sneak, sneaker, snitch, snitcher, stoolie, stoolpigeon.

stool pigeon (noun)	fink (noun)
a dummy pigeon used to decoy others	someone acting as an informer or decoy for the police
someone acting as an informer or decoy for the police

stool pigeon (verb)	fink (verb)
	confess to a punishable or reprehensible deed, usually under pressure
	take the place of work of someone on strike