Definition of nick:

part of speech: noun

A cut or notch.

part of speech: verb

To hit; to touch luckily; to perform by a slight artifice used at the lucky moment; to cozen; to defeat.

part of speech: noun

The exact point or critical moment; a fortunate conjuncture; the winning throw or trick.

part of speech: noun

The Devil.

part of speech: verb

To cut in nicks or notches; to notch.