snitcher vs squealer

snitcher and squealer both are nouns.

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

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

snitcher: 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 snitcher include betrayer, blabber, informer, rat.

snitcher (noun)	squealer (noun)
someone acting as an informer or decoy for the police	domestic swine
a thief who steals without using violence	one who reveals confidential information to the police or other authority