torment vs tormenter

torment and tormenter both are nouns.

Word	Noun	Adjective	Verb	Adverb
torment	Yes	No	Yes	No
tormenter	Yes	No	No	No

torment (noun)	tormenter (noun)
the act of harassing someone	a flat at each side of the stage to prevent the audience from seeing into the wings
a severe affliction	someone who torments
intense feelings of suffering; acute mental or physical pain
extreme mental distress
a feeling of intense annoyance caused by being tormented
unbearable physical pain

torment (verb)	tormenter (verb)
subject to torture
torment emotionally or mentally
treat cruelly