stoolpigeon vs fink

stoolpigeon and fink both are nouns.

Word	Noun	Adjective	Verb	Adverb
stoolpigeon	Yes	No	No	No
fink	Yes	No	Yes	No

As nouns, stoolpigeon and fink are synonyms defined as:

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

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

stoolpigeon (noun)	fink (noun)
someone acting as an informer or decoy for the police	someone acting as an informer or decoy for the police

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