hob

hob is a   Noun

Definition:

[1] The hub of a wheel. See Hub. Washington.

[2] The flat projection or iron shelf at the side of a fire grate, where things are put to be kept warm. Smart.

[3] A threaded and fluted hardened steel cutter, resembling a tap, used in a lathe for forming the teeth of screw chasers, worm wheels, etc.

Synonyms: