heroic poem vs epic poem

heroic poem and epic poem both are nouns.

Word	Noun	Adjective	Verb	Adverb
heroic poem	Yes	No	No	No
epic poem	Yes	No	No	No

As nouns, heroic poem and epic poem are synonyms defined as:

heroic poem and epic poem: a long narrative poem telling of a hero's deeds

Other synonyms of heroic poem include epic, epos.

heroic poem (noun)	epic poem (noun)
a long narrative poem telling of a hero's deeds	a long narrative poem telling of a hero's deeds