| 1667 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1921 | A New Dictionary of Kanji Usage |
| 90 | Classic Nelson (Andrew Nelson) |
| 1882 | Essential Kanji (P.G. O’Neill) |
| 1086 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 323 | Japanese Names (P.G. O’Neill) |
| 1892 | Kanji and Kana (Spahn and Hadamitzky) |
| 2068 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1921 | Kanji in Context (Nishiguchi and Kono) |
| 175 | Kodansha Compact Kanji Guide |
| 4298 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2174 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2928 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 34 | Les Kanjis dans la tete (Yves Maniette) |
| 1809 | Morohashi |
| 3486 | New Japanese English Character Dictionary (Jack Halpern) |
| 443 | New Nelson (John Haig) |
| 34 | Remembering The Kanji (James Heisig) |
| 34 | Remembering The Kanji, 6th edition (James Heisig) |
| 1040 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in junior high
JLPT level N1
2143 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 凸 【トツ】 convex
- 凸凹 【デコボコ】 unevenness, roughness, ruggedness, bumpiness, inequality, imbalance, unevenness, difference
- 凹凸 【オウトツ】 unevenness, bumpiness, roughness, ruggedness, imbalance, inequality, unevenness, disparity
- 両凸 【リョウトツ】 biconvex
Kun reading compounds
- 凸 【でこ】 brow, forehead, bump
- 凸凹 【でこぼこ】 unevenness, roughness, ruggedness, bumpiness, inequality, imbalance, unevenness, difference
Readings
- Korean:
- cheol, dol
Spanish
- convexo
- desigual
Portuguese
- convexo
- ímpar
French
- convexe
- inégal
- gros sourcils
| 3675 | 2001 Kanji |
| 0a5.13 | The Kanji Dictionary |
| 4-5-1 | SKIP code |
| 4-6-1 | SKIP code |
| 4-4-1 | SKIP code |
| 7777.7 | Four corner code |
| 1-38-44 | JIS X 0208-1997 kuten code |
| 51f8 | Unicode hex code |
Jōyō kanji, taught in grade 5
JLPT level N2
482 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 型式 【カタシキ】 model (e.g. of a vehicle), type
- 造形 【ゾウケイ】 molding, moulding, shaping, forming, modelling (i.e. plastic arts), modeling
- 体型 【タイケイ】 figure, body shape, build, physique, form, somatotype, biotype, habitus, (type of) physique
Kun reading compounds
- 型 【かた】 type, style, model, pattern, mold, mould, model, pattern, template, impression, kata (set sequence of positions and movements in martial arts), style (in kabuki, noh, etc.), form, convention, tradition, (standard) form, formula, usage, (set) size, inches (in sizes of displays, disks, image sensors, etc.), (taxonomical) form
- 型式 【かたしき】 model (e.g. of a vehicle), type
- 空手の型 【からてのかた】 kata (in karate)
Readings
- Korean:
- hyeong
Spanish
- tipo
- modelo
- patrón
Portuguese
- bolor
- tipo
- modelo
French
- moule
- modèle
- type
| 595 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 493 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 468 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 423 | A New Dictionary of Kanji Usage |
| 1077 | Classic Nelson (Andrew Nelson) |
| 685 | Essential Kanji (P.G. O’Neill) |
| 431 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 888 | Kanji and Kana (Spahn and Hadamitzky) |
| 909 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1318 | Kanji in Context (Nishiguchi and Kono) |
| 353 | Kodansha Compact Kanji Guide |
| 3266 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1685 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2292 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 687 | Les Kanjis dans la tete (Yves Maniette) |
| 5030 | Morohashi |
| 2638 | New Japanese English Character Dictionary (Jack Halpern) |
| 1010 | New Nelson (John Haig) |
| 680 | Remembering The Kanji (James Heisig) |
| 735 | Remembering The Kanji, 6th edition (James Heisig) |
| 523 | Tuttle Kanji Cards (Alexander Kask) |
| 3272 | 2001 Kanji |
| 3b6.11 | The Kanji Dictionary |
| 2-6-3 | SKIP code |
| 1210.4 | Four corner code |
| 1-23-31 | JIS X 0208-1997 kuten code |
| 578b | Unicode hex code |