angler vs troller

angler and troller both are nouns.

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

As nouns, angler and troller are synonyms defined as:

angler (noun)	troller (noun)
fishes having large mouths with a wormlike filament attached for luring prey	a fisherman who uses a hook and line
a fisherman who uses a hook and line
a scheming person; someone who schemes to gain an advantage