tantaliser vs tormenter

tantaliser and tormenter both are nouns.

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

As nouns, tormenter is a hypernym of tantaliser; that is, tormenter is a word with a broader meaning than tantaliser:

tantaliser: someone who tantalizes; a tormentor who offers something desirable but keeps it just out of reach
tormenter: someone who torments

Other hypernyms of tantaliser include persecutor, tormentor.

tantaliser (noun)	tormenter (noun)
someone who tantalizes; a tormentor who offers something desirable but keeps it just out of reach	a flat at each side of the stage to prevent the audience from seeing into the wings
	someone who torments