cornucopia vs abundance

cornucopia and abundance both are nouns.

Word	Noun	Adjective	Verb	Adverb
cornucopia	Yes	No	No	No
abundance	Yes	No	No	No

As nouns, abundance is a hypernym of cornucopia; that is, abundance is a word with a broader meaning than cornucopia:

Other hypernyms of cornucopia include copiousness, teemingness.

cornucopia (noun)	abundance (noun)
the property of being extremely abundant	the property of a more than adequate quantity or supply
a goat's horn filled with grain and flowers and fruit symbolizing prosperity	(chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per million
	(physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present