horsefish vs Atlantic moonfish

horsefish and Atlantic moonfish both are nouns.

Word	Noun	Adjective	Verb	Adverb
horsefish	Yes	No	No	No
Atlantic moonfish	Yes	No	No	No

As nouns, horsefish and Atlantic moonfish are synonyms defined as:

horsefish and Atlantic moonfish: any of several silvery marine fishes with very flat bodies

Other synonyms of horsefish include dollarfish, horse-head, horsehead, moonfish, Selene setapinnis.

horsefish (noun)	Atlantic moonfish (noun)
any of several silvery marine fishes with very flat bodies	any of several silvery marine fishes with very flat bodies