Olympic god vs Twelve Olympians

Olympic god and Twelve Olympians both are nouns.

Word	Noun	Adjective	Verb	Adverb
Olympic god	Yes	No	No	No
Twelve Olympians	Yes	No	No	No

As nouns, Olympic god and Twelve Olympians are synonyms defined as:

Olympic god and Twelve Olympians: a classical Greek god after the overthrow of the Titans

Other synonyms of Olympic god include Olympian.

Olympic god (noun)	Twelve Olympians (noun)
a classical Greek god after the overthrow of the Titans	a classical Greek god after the overthrow of the Titans