- noun one of a series of little teeth sticking out from a wheel, which connect with teeth on another wheel to make it turn
Cars & Driving
- noun a gear
- In a cogged joint, the portion of wood left where a beam has been notched.
- A nib on roofing tiles.
- verb to move, go, act energetically. The word also occurs in the verbs give it some cog and ‘get cogging’. The term, used in this way, particularly in working-class speech, is derived from subsense b of the noun form.
- acronym forchip-on-glass (written as COG)