| 1184 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1884 | A New Dictionary of Kanji Usage |
| 1730 | Classic Nelson (Andrew Nelson) |
| 1496 | Essential Kanji (P.G. O’Neill) |
| 1308 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2032 | Japanese Names (P.G. O’Neill) |
| 1642 | Kanji and Kana (Spahn and Hadamitzky) |
| 1755 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1701 | Kanji in Context (Nishiguchi and Kono) |
| 793 | Kodansha Compact Kanji Guide |
| 3513 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1813 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2467 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1976 | Les Kanjis dans la tete (Yves Maniette) |
| 10946X | Morohashi |
| 2834 | New Japanese English Character Dictionary (Jack Halpern) |
| 1925 | New Nelson (John Haig) |
| 1957 | Remembering The Kanji (James Heisig) |
| 2107 | Remembering The Kanji, 6th edition (James Heisig) |
| 1623 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in junior high
JLPT level N1
1551 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 愚 【グ】 foolishness, silliness, stupidity, folly, I, me
- 愚痴 【グチ】 idle complaint, grumble, moha (ignorance, folly)
- 軽愚 【ケイグ】 moronity, moron
- 大愚 【タイグ】 great folly or fool
Kun reading compounds
- 愚か 【おろか】 foolish, stupid, silly
- 愚かしい 【おろかしい】 foolish, stupid
Readings
- Korean:
- u
Spanish
- estupidez
- tontería
- prefijo humilde para cosas propias
Portuguese
- tolo
- tolice
- disparate
- estúpidez
French
- stupide
- absurdité
- idiot
- bête
| 3658 | 2001 Kanji |
| 4k9.15 | The Kanji Dictionary |
| 2-9-4 | SKIP code |
| 2-8-4 | SKIP code |
| 6033.2 | Four corner code |
| 1-22-82 | JIS X 0208-1997 kuten code |
| 611a | Unicode hex code |
Jōyō kanji, taught in grade 2
JLPT level N4
1219 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 兄 【ケイ】 you, Mr, Mister, older brother, elder brother
- 兄弟 【キョウダイ】 siblings, brothers and sisters, brothers, siblings-in-law, brothers-in-law, sisters-in-law, mate, friend
- 実兄 【ジッケイ】 biological older brother
- 父兄 【フケイ】 guardians, parents, father and older brother
- 兄弟 【キョウダイ】 siblings, brothers and sisters, brothers, siblings-in-law, brothers-in-law, sisters-in-law, mate, friend
- 兄姉 【ケイシ】 brother and sister
Kun reading compounds
- 兄 【あに】 older brother, elder brother
- 兄貴 【あにき】 elder brother, one's senior, older man, man older than oneself
- 中の兄 【なかのあに】 middle brother
- 義理の兄 【ぎりのあに】 one's brother-in-law, stepbrother (elder)
Readings
- Japanese names:
- え、 せ、 よし
- Korean:
- hyeong
Spanish
- hermano mayor
Portuguese
- irmão mais velho
- irmão maior
French
- frère aîné
- grand frère
| 199 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 114 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 267 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1049 | A New Dictionary of Kanji Usage |
| 875 | Classic Nelson (Andrew Nelson) |
| 234 | Essential Kanji (P.G. O’Neill) |
| 122 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 181 | Japanese Names (P.G. O’Neill) |
| 3.18 | Japanese for Busy People |
| 406 | Kanji and Kana (Spahn and Hadamitzky) |
| 410 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 75 | Kanji in Context (Nishiguchi and Kono) |
| 142 | Kodansha Compact Kanji Guide |
| 2676 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1362 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1848 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 104 | Les Kanjis dans la tete (Yves Maniette) |
| 1343 | Morohashi |
| 2154 | New Japanese English Character Dictionary (Jack Halpern) |
| 344 | New Nelson (John Haig) |
| 103 | Remembering The Kanji (James Heisig) |
| 107 | Remembering The Kanji, 6th edition (James Heisig) |
| 106 | Tuttle Kanji Cards (Alexander Kask) |
| 3757 | 2001 Kanji |
| 3d2.9 | The Kanji Dictionary |
| 2-3-2 | SKIP code |
| 6021.0 | Four corner code |
| 1-23-27 | JIS X 0208-1997 kuten code |
| 5144 | Unicode hex code |