sneaker vs squealer

sneaker and squealer both are nouns.

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

As nouns, squealer is a hypernym of sneaker; that is, squealer is a word with a broader meaning than sneaker:

sneaker: someone acting as an informer or decoy for the police
squealer: one who reveals confidential information to the police or other authority

Other hypernyms of sneaker include betrayer, blabber, informer, rat.

sneaker (noun)	squealer (noun)
a canvas shoe with a pliable rubber sole	domestic swine
someone acting as an informer or decoy for the police	one who reveals confidential information to the police or other authority