god of war vs god

god of war and god both are nouns.

Word	Noun	Adjective	Verb	Adverb
god of war	Yes	No	No	No
god	Yes	No	No	No

As nouns, god is a hypernym of god of war; that is, god is a word with a broader meaning than god of war:

god of war: a god worshipped as giving victory in war
god: any supernatural being worshipped as controlling some part of the world or some aspect of life or who is the personification of a force

Other hypernyms of god of war include deity, divinity, immortal.

god of war (noun)	god (noun)
a god worshipped as giving victory in war	a material effigy that is worshipped
	any supernatural being worshipped as controlling some part of the world or some aspect of life or who is the personification of a force
	a man of such superior qualities that he seems like a deity to other people