gift horse vs gift

gift horse and gift both are nouns.

Word	Noun	Adjective	Verb	Adverb
gift horse	Yes	No	No	No
gift	Yes	No	Yes	No

As nouns, gift is a hypernym of gift horse; that is, gift is a word with a broader meaning than gift horse:

gift horse: a gift (usually of inferior quality) that should be accepted uncritically
gift: something acquired without compensation

gift horse (noun)	gift (noun)
a gift (usually of inferior quality) that should be accepted uncritically	the act of giving
	natural abilities or qualities
	something acquired without compensation

gift horse (verb)	gift (verb)
	give as a present; make a gift of
	give qualities or abilities to