nark
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
A police spy or informer.
Register: slang
Examples
So I went and laid down on the grass. While laying there I piped a reeler whom I knew. He had a nark (a policeman's spy) with him. So I went and looked about for my two pals, and told them to look out for F. and his nark.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
An unpleasant person, especially one who makes things difficult for others.
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “nark” mean?
A police spy or informer.
Is “nark” formal or informal?
nark is generally slang.