歯車(はぐるま)

はぐるま
noun
gear, cogwheel
toolwork
1. gear, cogwheel, cog
A rotating machine part with teeth that mesh with another toothed part to transmit motion.
The gear in the clock is broken.
The gears mesh and move smoothly.
The machine works correctly when the two gears mesh together.
2. cog (in a system)
Figuratively, a small part of a larger mechanism or organization.
He's just a cog in a large organization.
Figurative usage
Things have started to go wrong within the team, and the project is falling behind.
歯車(はぐるま)が狂(くる)う = things stop working smoothly
I've grown tired of continuing to work as a cog in society's machine.

Etymology: 歯(は) (tooth) + 車(くるま) (wheel).

Common patterns

Usage: Figuratively (sense 2), often used of feeling like an interchangeable part of a large organization or of society: 社会(しゃかい)の歯車(はぐるま).

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