stag vs give away

stag is a noun but give away is not a noun.

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

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

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

stag (noun)	give away (noun)
adult male deer
a male deer, especially an adult male red deer

stag (verb)	give away (verb)
watch, observe, or inquire secretly	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
attend a dance or a party without a female companion	make a gift of
	formally hand over to the bridegroom in marriage; of a bride by her father