give away vs snitch

give away is not a noun while snitch is a noun.

Word	Noun	Adjective	Verb	Adverb
give away	No	No	Yes	No
snitch	Yes	No	Yes	No

As verbs, give away and snitch are synonyms defined as:

Other synonyms of give away include betray, denounce, grass, rat, shit, shop, stag, tell on.

give away (noun)	snitch (noun)
	someone acting as an informer or decoy for the police

give away (verb)	snitch (verb)
make known to the public information that was previously known only to a few people or that was meant to be kept a secret	give away information about somebody
give away information about somebody	take by theft
make a gift of
formally hand over to the bridegroom in marriage; of a bride by her father