sexual harassment vs harassment

sexual harassment and harassment both are nouns.

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

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

sexual harassment: unwelcome sexual behavior by a supervisor toward an employee
harassment: the act of tormenting by continued persistent attacks and criticism

Other hypernyms of sexual harassment include molestation.

sexual harassment (noun)	harassment (noun)
unwelcome sexual behavior by a supervisor toward an employee	the act of tormenting by continued persistent attacks and criticism
	a feeling of intense annoyance caused by being tormented