dolphinfish vs dolphinfish

dolphinfish and dolphinfish both are nouns.

Word	Noun	Adjective	Verb	Adverb
dolphinfish	Yes	No	No	No
dolphinfish	Yes	No	No	No

dolphinfish (noun)	dolphinfish (noun)
large slender food and game fish widely distributed in warm seas (especially around Hawaii)	large slender food and game fish widely distributed in warm seas (especially around Hawaii)
the lean flesh of a saltwater fish found in warm waters (especially in Hawaii)	the lean flesh of a saltwater fish found in warm waters (especially in Hawaii)