god of war vs war god

god of war and war god both are nouns.

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

As nouns, god of war and war god are synonyms defined as:

god of war (noun)	war god (noun)
a god worshipped as giving victory in war	a god worshipped as giving victory in war