house husband vs husband

house husband and husband both are nouns.

Word	Noun	Adjective	Verb	Adverb
house husband	Yes	No	No	No
husband	Yes	No	Yes	No

As nouns, husband is a hypernym of house husband; that is, husband is a word with a broader meaning than house husband:

house husband: a husband who keeps house while his wife earns the family income
husband: a married man; a woman's partner in marriage

Other hypernyms of house husband include hubby, married man.

house husband (noun)	husband (noun)
a husband who keeps house while his wife earns the family income	a married man; a woman's partner in marriage

house husband (verb)	husband (verb)
	use cautiously and frugally