Found 2 items, similar to nark.
English → English (WordNet) Definition: nark nark n 1: an informer or spy working for the police [syn: copper's nark ] 2: a lawman concerned with narcotics violations [syn: narc, narcotics agent ] v 1: cause annoyance in; disturb, especially by minor irritations; “Mosquitoes buzzing in my ear really bothers me”; “It irritates me that she never closes the door after she leaves” [syn: annoy, rag, get to, bother, get at, irritate, rile, nettle, gravel, vex, chafe, devil] 2: inform or spy (for the police)
English → English (gcide) Definition: nark nark \nark\ n. [from narcotics.] A law enforcement agent specializing in narcotics law violations. [slang] [PJC]