stoolpigeon vs sneaker

stoolpigeon and sneaker both are nouns.

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

As nouns, stoolpigeon and sneaker are synonyms defined as:

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

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

stoolpigeon (noun)	sneaker (noun)
someone acting as an informer or decoy for the police	a canvas shoe with a pliable rubber sole
	someone acting as an informer or decoy for the police