What is the meaning of Cog?

A tooth on a gear.

A gear; a cogwheel.

An unimportant individual in a greater system.

A projection or tenon at the end of a beam designed to fit into a matching opening of another piece of wood to form a joint.

One of the rough pillars of stone or coal left to support the roof of a mine.

To furnish with a cog or cogs.

Of an electric motor or generator, to snap preferentially to certain positions when not energized.

A clinker-built, flat-bottomed, square-rigged mediaeval ship of burden, or war with a round, bulky hull and a single mast, typically 15 to 25 meters in length.

A small fishing boat.

A trick or deception; a falsehood.

To load (a die) so that it can be used to cheat.

To cheat; to play or gamble fraudulently.

To seduce, or draw away, by adulation, artifice, or falsehood; to wheedle; to cozen; to cheat.

To plagiarize.

To obtrude or thrust in, by falsehood or deception; to palm off.

Alternative form of cogue (wooden vessel for milk)

to war, wage war

a ship of burden, or war with a round, bulky hull

fight

cuckoo

cook

Source: wiktionary.org