nark vs provoke

nark is a noun but provoke is not a noun.

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

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

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

nark (verb)	provoke (verb)
inform or spy (for the police)	provide the needed stimulus for
cause annoyance in; disturb, especially by minor irritations	evoke or provoke to appear or occur
	call forth (emotions, feelings, and responses)
	annoy continually or chronically