English Dictionary

cog

/kɒɡ/

noun

A tooth on a gear. / A gear; a cogwheel. / An unimportant individual in a greater system.

I need to replace a cog in my bicycle.

意味（1）

A tooth on a gear.

意味（2）

A gear; a cogwheel.

意味（3）

An unimportant individual in a greater system.

‘There are twenty-five of us, but they don’t reckon I’m worth anything. I’m just a cog in the machine.’

意味（4）

(carpentry) 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.

意味（5）

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