tormentor vs tormenter

tormentor and tormenter both are nouns.

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

As nouns, tormentor and tormenter are synonyms defined as:

tormentor and tormenter: a flat at each side of the stage to prevent the audience from seeing into the wings

Other synonyms of tormentor include teaser.

As nouns, tormentor and tormenter are synonyms defined as:

Other synonyms of tormentor include persecutor.

tormentor (noun)	tormenter (noun)
a flat at each side of the stage to prevent the audience from seeing into the wings	a flat at each side of the stage to prevent the audience from seeing into the wings
someone who torments	someone who torments