troll vs troller

troll and troller both are nouns.

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

troll (noun)	troller (noun)
angling by drawing a baited line through the water	a fisherman who uses a hook and line
a fisherman's lure that is used in trolling
a partsong in which voices follow each other; one voice starts and others join in one after another until all are singing different parts of the song at the same time
(Scandinavian folklore) a supernatural creature (either a dwarf or a giant) that is supposed to live in caves or in the mountains

troll (verb)	troller (verb)
sing loudly and without inhibition
praise or celebrate in song
speak or recite rapidly or in a rolling voice
angle with a hook and line drawn through the water
sing the parts of (a round) in succession
cause to move round and round
circulate, move around