chivy vs nark

chivy is not a noun while nark is a noun.

Word	Noun	Adjective	Verb	Adverb
chivy	No	No	Yes	No
nark	Yes	No	Yes	No

As verbs, nark is a hypernym of chivy; that is, nark is a word with a broader meaning than chivy:

Other hypernyms of chivy include annoy, bother, chafe, devil, get at, get to, gravel, irritate, nettle, rag, rile, vex.

chivy (noun)	nark (noun)
	an informer or spy working for the police
	a lawman concerned with narcotics violations

chivy (verb)	nark (verb)
annoy continually or chronically	inform or spy (for the police)
	cause annoyance in; disturb, especially by minor irritations