fisher vs angler

fisher and angler both are nouns.

Word	Noun	Adjective	Verb	Adverb
fisher	Yes	No	No	No
angler	Yes	No	No	No

As nouns, angler is a hyponym of fisher; that is, angler is a word with a more specific, narrower meaning than fisher:

Other hyponyms of fisher include troller, trawler.

fisher (noun)	angler (noun)
large dark brown North American arboreal carnivorous mammal	fishes having large mouths with a wormlike filament attached for luring prey
someone whose occupation is catching fish	a fisherman who uses a hook and line
	a scheming person; someone who schemes to gain an advantage