nark has definitions from the field of law
1
[ noun ] (British) an informer or spy working for the police

Synonyms

copper's_nark

Related terms

informer UK

2
[ verb ] inform or spy (for the police)

Related terms

inform

3
[ verb ] cause annoyance in; disturb, esp. by minor irritations

Examples

: "Mosquitoes buzzing in my ear really bothers me" "It irritates me that she never closes the door after she leaves"

4
[ noun ] (law) a lawman concerned with narcotics violations

Related terms

lawman

*