snitcher vs betrayer

snitcher and betrayer both are nouns.

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

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

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

Other hypernyms of snitcher include blabber, informer, rat, squealer.

snitcher (noun)	betrayer (noun)
someone acting as an informer or decoy for the police	a person who says one thing and does another
a thief who steals without using violence	one who reveals confidential information to the police or other authority