COG

noun a small fishing boat.

2. cog ·vt to furnish with a cog or cogs.

3. cog ·noun a tenon in a scarf joint; a coak.

4. cog ·noun a trick or deception; a falsehood.

5. cog ·noun one of the rough pillars of stone or coal left to support the roof of a mine.

6. cog ·vt to obtrude or thrust in, by falsehood or deception; as, to cog in a word; to palm off.

7. cog ·noun a kind of tenon on the end of a joist, received into a notch in a bearing timber, and resting flush with its upper surface.

8. cog ·vt to seduce, or draw away, by adulation, artifice, or falsehood; to wheedle; to cozen; to cheat.

9. cog ·vi to deceive; to cheat; to play false; to lie; to wheedle; to cajole.

10. cog ·noun a tooth, cam, or catch for imparting or receiving motion, as on a gear wheel, or a lifter or wiper on a shaft; originally, a separate piece of wood set in a mortise in the face of a wheel.