cog

1. A tooth on a gear.
2. A gear; a cogwheel.
3. An unimportant individual in a greater system.
4. 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.
5. One of the rough pillars of stone or coal left to support the roof of a mine.

verb

To furnish with a cog or cogs.

noun

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

noun

A trick or deception; a falsehood.

1. To load (a die) so that it can be used to cheat.
2. To cheat; to play or gamble fraudulently.
3. To seduce, or draw away, by adulation, artifice, or falsehood; to wheedle; to cozen; to cheat.
4. To obtrude or thrust in, by falsehood or deception; to palm off.

   to cog in a word

noun

A small fishing boat.

noun

A small round wooden vessel for holding milk.