snitcher vs sneak thief

snitcher and sneak thief both are nouns.

Word	Noun	Adjective	Verb	Adverb
snitcher	Yes	No	No	No
sneak thief	Yes	No	No	No

As nouns, snitcher and sneak thief are synonyms defined as:

Other synonyms of snitcher include pilferer.

snitcher (noun)	sneak thief (noun)
someone acting as an informer or decoy for the police	a thief who steals without using violence
a thief who steals without using violence