stool pigeon vs sneaker

stool pigeon and sneaker both are nouns.

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

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

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

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

stool pigeon (noun)	sneaker (noun)
a dummy pigeon used to decoy others	a canvas shoe with a pliable rubber sole
someone acting as an informer or decoy for the police	someone acting as an informer or decoy for the police