- 歯車 [はぐるま] [haguruma] – gear
- 歯 [goon / kan’on: し (shi); kun: は (ha), よわい (yowai), よわいする (yowaisuru)] – tooth; age
- 車 [goon: しゃ (sha), こ (ko); kan’on: しゃ (sha), きょ (kyo); kun: くるま (kuruma)] – vehicle; a car; an automobile; a carriage; a cart; a wheel; a caster.
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