torment vs hassle

torment and hassle both are nouns.

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

As verbs, hassle is a hypernym of torment; that is, hassle is a word with a broader meaning than torment:

Other hypernyms of torment include beset, chevvy, chevy, chivvy, chivy, harass, harry, molest, plague, provoke.

torment (noun)	hassle (noun)
the act of harassing someone	disorderly fighting
a severe affliction	an angry disturbance
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)	hassle (verb)
subject to torture	annoy continually or chronically
torment emotionally or mentally
treat cruelly