| 1661 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1756 | A New Dictionary of Kanji Usage |
| 2546 | Classic Nelson (Andrew Nelson) |
| 1468 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 821 | Japanese Names (P.G. O’Neill) |
| 1301 | Kanji and Kana (Spahn and Hadamitzky) |
| 1380 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1844 | Kanji in Context (Nishiguchi and Kono) |
| 1191 | Kodansha Compact Kanji Guide |
| 455 | Kodansha Kanji Dictionary (Jack Halpern) |
| 280 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 340 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 183 | Les Kanjis dans la tete (Yves Maniette) |
| 17386 | Morohashi |
| 380 | New Japanese English Character Dictionary (Jack Halpern) |
| 3125 | New Nelson (John Haig) |
| 181 | Remembering The Kanji (James Heisig) |
| 193 | Remembering The Kanji, 6th edition (James Heisig) |
| 1276 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in junior high
JLPT level N1
1618 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 洞 【ドウ】 sinus, cavity, antrum, neighborhood (administrative division in North Korea)
- 洞察 【ドウサツ】 discernment, insight
- 空洞 【クウドウ】 cavity, hollow, cave, cavern, hollow
- 風洞 【フウドウ】 wind tunnel
Kun reading compounds
- 洞 【ほら】 hollow, cavity, hole, cave
- 洞穴 【ほらあな】 cave, cavern, den, grotto
Readings
- Japanese names:
- とう
- Korean:
- dong, tong
Spanish
- cavidad
- hueco
- excavación
- prever
Portuguese
- gruta
- caverna
- escavação
French
- antre
- grotte
- excavation
| 349 | 2001 Kanji |
| 3a6.25 | The Kanji Dictionary |
| 1-3-6 | SKIP code |
| 3712.0 | Four corner code |
| 1-38-22 | JIS X 0208-1997 kuten code |
| 6d1e | Unicode hex code |
Jōyō kanji, taught in grade 4
JLPT level N3
644 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 富士山 【フジサン】 Mount Fuji, Mt. Fuji, Fujiyama, Fuji-san
- 富豪 【フゴウ】 wealthy person, millionaire
- 種類豊富 【シュルイホウフ】 rich in variety, diverse, wide-ranging, multifarious
- 知識豊富 【チシキホウフ】 knowledgeable
- 富者 【フシャ】 rich person, millionaire, the wealthy
- 富貴 【フウキ】 riches and honours (honors), wealth and rank
Kun reading compounds
- 富む 【とむ】 to be rich in, to abound in, to be abundant in, to be full of, to be rich, to be wealthy
- 富 【とみ】 riches, wealth, fortune, resources, lottery
- 富くじ 【とみくじ】 lottery run by a temple or shrine
- 陶朱猗頓の富 【とうしゅいとんのとみ】 great wealth, very wealthy person
- 巨万の富 【きょまんのとみ】 great wealth, enormous fortune
Readings
- Japanese names:
- と、 とん、 ふっ
- Korean:
- bu
Spanish
- riqueza
- fortuna
- ser rico
- hacerse rico
Portuguese
- riqueza
- enriquecer
- abundante
French
- fortune
- richesse
- abondance
| 864 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 801 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 780 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 539 | A New Dictionary of Kanji Usage |
| 1321 | Classic Nelson (Andrew Nelson) |
| 705 | Essential Kanji (P.G. O’Neill) |
| 472 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1715 | Japanese Names (P.G. O’Neill) |
| 713 | Kanji and Kana (Spahn and Hadamitzky) |
| 726 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 629 | Kanji in Context (Nishiguchi and Kono) |
| 491 | Kodansha Compact Kanji Guide |
| 2892 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1489 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2009 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 197 | Les Kanjis dans la tete (Yves Maniette) |
| 7230 | Morohashi |
| 2310 | New Japanese English Character Dictionary (Jack Halpern) |
| 1349 | New Nelson (John Haig) |
| 193 | Remembering The Kanji (James Heisig) |
| 205 | Remembering The Kanji, 6th edition (James Heisig) |
| 765 | Tuttle Kanji Cards (Alexander Kask) |
| 776 | 2001 Kanji |
| 3m9.5 | The Kanji Dictionary |
| 2-3-9 | SKIP code |
| 3060.6 | Four corner code |
| 1-41-57 | JIS X 0208-1997 kuten code |
| 5bcc | Unicode hex code |
Jōyō kanji, taught in junior high
JLPT level N1
669 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 雄 【ユウ】 male, man, excellence, greatness, best (of), great person, leading figure
- 雄大 【ユウダイ】 grand, magnificent, majestic, great, sublime
- 雌雄 【シユウ】 male and female (animals), the two sexes, victory and defeat, strengths and weaknesses
- 両雄 【リョウユウ】 two great men
Kun reading compounds
- 雄 【おす】 male (animal, plant)
- オス犬 【おすいぬ】 male dog
- 雄 【おす】 male (animal, plant)
- 雄鶏 【おんどり】 male bird, cock, rooster
Readings
- Japanese names:
- かつ、 たけ、 つよし、 ゆ、 よう
- Korean:
- ung
Spanish
- fuerte
- bravo
- valiente
- masculino
- varón
Portuguese
- masculino
- másculo
- herói
- líder
- superioridade
- excelência
French
- mâle
- masculin
- héros
- chef
- supériorité
- excellence
| 1869 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 500 | A New Dictionary of Kanji Usage |
| 5030 | Classic Nelson (Andrew Nelson) |
| 1387 | Essential Kanji (P.G. O’Neill) |
| 1884 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1912 | Japanese Names (P.G. O’Neill) |
| 1387 | Kanji and Kana (Spahn and Hadamitzky) |
| 1476 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1637 | Kanji in Context (Nishiguchi and Kono) |
| 1852 | Kodansha Compact Kanji Guide |
| 1271 | Kodansha Kanji Dictionary (Jack Halpern) |
| 688 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 920 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 751 | Les Kanjis dans la tete (Yves Maniette) |
| 41972 | Morohashi |
| 1008 | New Japanese English Character Dictionary (Jack Halpern) |
| 6499 | New Nelson (John Haig) |
| 743 | Remembering The Kanji (James Heisig) |
| 804 | Remembering The Kanji, 6th edition (James Heisig) |
| 1602 | Tuttle Kanji Cards (Alexander Kask) |
| 1475 | 2001 Kanji |
| 8c4.1 | The Kanji Dictionary |
| 1-4-8 | SKIP code |
| 4001.4 | Four corner code |
| 1-45-26 | JIS X 0208-1997 kuten code |
| 96c4 | Unicode hex code |