horn of plenty vs symbol

horn of plenty and symbol both are nouns.

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

As nouns, symbol is a hypernym of horn of plenty; that is, symbol is a word with a broader meaning than horn of plenty:

horn of plenty: a goat's horn filled with grain and flowers and fruit symbolizing prosperity
symbol: something visible that by association or convention represents something else that is invisible

Other hypernyms of horn of plenty include symbolic representation, symbolisation, symbolization.

horn of plenty (noun)	symbol (noun)
a goat's horn filled with grain and flowers and fruit symbolizing prosperity	something visible that by association or convention represents something else that is invisible
	an arbitrary sign (written or printed) that has acquired a conventional significance