Adjective

1. conspicuously short

   a snub-nosed revolver

2. Derived from a simpler polyhedron by the addition of extra triangular faces

Noun

1. A deliberate affront or slight.

   I hope the people we couldn't invite don't see it as a snub.

2. A sudden checking of a cable or rope.

Verb

1. To slight, ignore or behave coldly toward someone.
2. To turn down; to dismiss.

   He snubbed my offer to help.

3. To stub out (a cigarette etc).
4. To halt the movement of a rope etc by turning it about a cleat or bollard etc; to secure a vessel in this manner.