Onyomi: シ · Kunyomi: は, よわ.い, よわい, よわい.する · Meanings: cog, tooth
Kanji for cog, tooth
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The kanji 歯 is made from 歯 itself in ancient script, which showed a row of teeth with roots beneath the gums. It clearly represented the structure of teeth — strong and lined up in the mouth. Over time, this pictograph became the kanji for “tooth” or “teeth.”
Shows a row of teeth with roots — 歯 represents a tooth or teeth in the mouth.
This kanji says: imagine looking at a row of teeth in your mouth, each one rooted and lined up carefully — 歯 means tooth. Remember it by picturing your teeth as strong, lined up, and ready to bite.
| Word | Reading | Meaning | Meta |
|---|---|---|---|
| 歯 | は | tooth, teeth | common JLPT-N5 Noun |
| 齢 | よわい | (one's) age | common Noun |
| 歯 | し | tooth | Noun |
| 歯磨き | はみがき | dental brushing, brushing one's teeth | common JLPT-N2 JLPT-N1 Noun, Suru verb, Intransitive verb |
| 歯車 | はぐるま | gear, cogwheel | common JLPT-N2 Noun |
| 歯医者 | はいしゃ | dentist | common JLPT-N4 Noun |
| 歯科衛生士 | しかえいせいし | dental hygienist | common Noun |
| 歯垢 | しこう | (dental) plaque | Noun |
| 歯科医 | しかい | dentist | common Noun |
| 歯止め | はどめ | brake, drag, skid, pawl | common Noun |