striped killifish vs may fish

striped killifish and may fish both are nouns.

Word	Noun	Adjective	Verb	Adverb
striped killifish	Yes	No	No	No
may fish	Yes	No	No	No

As nouns, striped killifish and may fish are synonyms defined as:

striped killifish and may fish: black-barred fish of bays and coastal marshes of the Atlantic and Gulf Coast of the United States

Other synonyms of striped killifish include Fundulus majalis, mayfish.

striped killifish (noun)	may fish (noun)
black-barred fish of bays and coastal marshes of the Atlantic and Gulf Coast of the United States	black-barred fish of bays and coastal marshes of the Atlantic and Gulf Coast of the United States