angler fish vs monkfish

angler fish and monkfish both are nouns.

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

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

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

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

angler fish (noun)	monkfish (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