| 1217 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 914 | A New Dictionary of Kanji Usage |
| 1096 | Classic Nelson (Andrew Nelson) |
| 995 | Essential Kanji (P.G. O’Neill) |
| 1155 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1796 | Japanese Names (P.G. O’Neill) |
| 1289 | Kanji and Kana (Spahn and Hadamitzky) |
| 1363 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1228 | Kanji in Context (Nishiguchi and Kono) |
| 356 | Kodansha Compact Kanji Guide |
| 3502 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1805 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2457 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 861 | Les Kanjis dans la tete (Yves Maniette) |
| 5210 | Morohashi |
| 2823 | New Japanese English Character Dictionary (Jack Halpern) |
| 1038 | New Nelson (John Haig) |
| 853 | Remembering The Kanji (James Heisig) |
| 917 | Remembering The Kanji, 6th edition (James Heisig) |
| 1513 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in junior high
JLPT level N1
1049 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 堅 【ケン】 strength, solidity, firmness, armour, armor
- 堅持 【ケンジ】 holding on to, sticking to
- 中堅 【チュウケン】 nucleus, backbone, mainstay, key figure, medium-level, mid-level, middle-ranking, midsize, main body (of troops), crack troops, select troops, center field, centre field, center fielder, centre fielder, athlete competing in the middle-number match in a team competition, i.e. second in 3-on-3, third in 5-on-5 (kendo, judo, etc.)
- 米利堅 【メリケン】 America, American, fist
Kun reading compounds
- 硬い 【かたい】 hard, solid, tough, stiff, tight, wooden, unpolished (e.g. writing), strong, firm (not viscous or easily moved), safe, steady, honest, steadfast, obstinate, stubborn, bookish, formal, stuffy
- 堅い商売 【かたいしょうばい】 sound business
Readings
- Japanese names:
- きん
- Korean:
- gyeon
Spanish
- duro
- sólido
- firme
- apretado
- estricto
Portuguese
- de confiança
- apertado
- duro
- sólido
- firme
- estrito
French
- tenace
- dur
- strict
- solide
- ferme
- fiable
| 3472 | 2001 Kanji |
| 3b9.13 | The Kanji Dictionary |
| 2-9-3 | SKIP code |
| 2-8-3 | SKIP code |
| 7710.4 | Four corner code |
| 1-23-88 | JIS X 0208-1997 kuten code |
| 5805 | Unicode hex code |
sturdy, strength
- On:
- ゴウ
Jōyō kanji, taught in junior high
JLPT level N1
1576 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 剛 【ゴウ】 strength, toughness, bravery, boldness
- 強情 【ゴウジョウ】 obstinate, stubborn, headstrong
- 強豪 【キョウゴウ】 overwhelming strength, extremely strong person, powerhouse, very strong player, very strong team
- 金剛 【コンゴウ】 vajra (indestructible substance), diamond, adamantine, thunderbolt, Indra's weapon, Buddhist symbol of the indestructible truth
Readings
- Japanese names:
- かた、 こう、 ご、 たか、 たけ、 たけし、 つよ、 つよし、 ひさ、 まさ、 よし
- Korean:
- gang
Spanish
- fuerte
- robusto
- inflexible
- rígido
Portuguese
- robusto
- vigor
French
- fermeté
- vigoureux
- force
| 1270 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1854 | A New Dictionary of Kanji Usage |
| 114 | Classic Nelson (Andrew Nelson) |
| 1434 | Essential Kanji (P.G. O’Neill) |
| 1094 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1429 | Japanese Names (P.G. O’Neill) |
| 1610 | Kanji and Kana (Spahn and Hadamitzky) |
| 1717 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1613 | Kanji in Context (Nishiguchi and Kono) |
| 199 | Kodansha Compact Kanji Guide |
| 2107 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1097 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1495 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1983 | Les Kanjis dans la tete (Yves Maniette) |
| 2042 | Morohashi |
| 1673 | New Japanese English Character Dictionary (Jack Halpern) |
| 497 | New Nelson (John Haig) |
| 1964 | Remembering The Kanji (James Heisig) |
| 2115 | Remembering The Kanji, 6th edition (James Heisig) |
| 1311 | Tuttle Kanji Cards (Alexander Kask) |
| 3643 | 2001 Kanji |
| 2f8.7 | The Kanji Dictionary |
| 1-8-2 | SKIP code |
| 7220.0 | Four corner code |
| 1-25-68 | JIS X 0208-1997 kuten code |
| 525b | Unicode hex code |