nark vs lawman

nark and lawman both are nouns.

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

As nouns, lawman is a hypernym of nark; that is, lawman is a word with a broader meaning than nark:

Other hypernyms of nark include law officer, peace officer.

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

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