giveaway vs give away

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

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

giveaway (noun)	give away (noun)
an unintentional disclosure
a television or radio program in which contestants compete for awards
a gift of public land or resources for the private gain of a limited group

giveaway (verb)	give away (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
	make a gift of
	formally hand over to the bridegroom in marriage; of a bride by her father