Japanese symbol for “convex”
凸
とつ
Romaji: totsu
convex
In Japanese, convex is 凸, read とつ (totsu).
Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.
Meanings
- adj-na, adj-no convex
Kanji and stroke order
Other Japanese words for “convex”
| Word | Reading | Meaning |
|---|---|---|
| 中高 | なかだか nakadaka | convex |
| コンベックス | コンベックス konbekkusu | convex |
| 凸面 | とつめん totsumen | convex surface; convex |
| 凸形 | とつけい totsukei | convex; cuspid; gibbous |
Related words
Words that share a kanji.
| Word | Reading | Meaning |
|---|---|---|
| 凹凸 | おうとつ outotsu | unevenness; bumpiness; roughness |
| 凸凹 | でこぼこ dekoboko | unevenness; roughness; ruggedness |
| 凸版印刷 | とっぱんいんさつ toppan'insatsu | letterpress; relief printing |
| 凸版 | とっぱん toppan | letterpress; relief printing |
| 凸レンズ | とつレンズ totsurenzu | convex lens |
| 凸面 | とつめん totsumen | convex surface; convex |
See also: Chinese symbol for “convex”.
Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.