monkfish vs angler fish

monkfish and angler fish both are nouns.

Word	Noun	Adjective	Verb	Adverb
monkfish	Yes	No	No	No
angler fish	Yes	No	No	No

As nouns, monkfish and angler fish are synonyms defined as:

monkfish and angler fish: fishes having large mouths with a wormlike filament attached for luring prey

Other synonyms of monkfish include allmouth, angler, anglerfish, goosefish, Lophius Americanus, lotte.

monkfish (noun)	angler fish (noun)
fishes having large mouths with a wormlike filament attached for luring prey	fishes having large mouths with a wormlike filament attached for luring prey
sharks with broad flat bodies and winglike pectoral fins but that swim the way sharks do
flesh of a large-headed anglerfish of the Atlantic waters of North America