horn of plenty vs cornucopia

horn of plenty and cornucopia both are nouns.

Word	Noun	Adjective	Verb	Adverb
horn of plenty	Yes	No	No	No
cornucopia	Yes	No	No	No

As nouns, horn of plenty and cornucopia are synonyms defined as:

horn of plenty and cornucopia: a goat's horn filled with grain and flowers and fruit symbolizing prosperity

horn of plenty (noun)	cornucopia (noun)
a goat's horn filled with grain and flowers and fruit symbolizing prosperity	the property of being extremely abundant
	a goat's horn filled with grain and flowers and fruit symbolizing prosperity