torment vs harassment

torment and harassment both are nouns.

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

As nouns, harassment is a hypernym of torment; that is, harassment is a word with a broader meaning than torment:

torment: the act of harassing someone
harassment: the act of tormenting by continued persistent attacks and criticism

Other hypernyms of torment include molestation.

As nouns, torment and harassment are synonyms defined as:

torment and harassment: a feeling of intense annoyance caused by being tormented

torment (noun)	harassment (noun)
the act of harassing someone	the act of tormenting by continued persistent attacks and criticism
a severe affliction	a feeling of intense annoyance caused by being tormented
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)	harassment (verb)
subject to torture
torment emotionally or mentally
treat cruelly