harass vs needle

harass is not a noun while needle is a noun.

Word	Noun	Adjective	Verb	Adverb
harass	No	No	Yes	No
needle	Yes	No	Yes	No

As verbs, needle is a hyponym of harass; that is, needle is a word with a more specific, narrower meaning than harass:

Other hyponyms of harass include goad, bedevil, crucify, dun, frustrate, rag, torment, haze.

harass (noun)	needle (noun)
	a sharp pointed implement (usually steel)
	a slender pointer for indicating the reading on the scale of a measuring instrument
	a stylus that formerly made sound by following a groove in a phonograph record
	the leaf of a conifer

harass (verb)	needle (verb)
exhaust by attacking repeatedly	annoy or provoke, as by constant criticism
annoy continually or chronically	prick with a needle