| 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 |
idea, mind, heart, taste, thought, desire, care, liking
- On:
- イ
Jōyō kanji, taught in grade 3
JLPT level N4
99 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 意 【イ】 feelings, thoughts, meaning
- 意外 【イガイ】 unexpected, surprising
- 賛意 【サンイ】 approval, assent
- 総意 【ソウイ】 consensus, collective will, collective opinion
Readings
- Japanese names:
- もと、 よし
- Korean:
- eui
Spanish
- idea
- sentimiento
- razón
- intención
Portuguese
- idéia
- mente
- coração
- gosto
- pensamento
- desejo
- atenção
French
- idée
- esprit
- coeur
- pensée
- attention
- goût
- désir
| 155 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 246 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 226 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 118 | A New Dictionary of Kanji Usage |
| 5113 | Classic Nelson (Andrew Nelson) |
| 225 | Essential Kanji (P.G. O’Neill) |
| 176 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2007 | Japanese Names (P.G. O’Neill) |
| 2.19 | Japanese for Busy People |
| 132 | Kanji and Kana (Spahn and Hadamitzky) |
| 132 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 291 | Kanji in Context (Nishiguchi and Kono) |
| 791 | Kodansha Compact Kanji Guide |
| 2650 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1352 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1834 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 615 | Les Kanjis dans la tete (Yves Maniette) |
| 10921 | Morohashi |
| 2136 | New Japanese English Character Dictionary (Jack Halpern) |
| 1926 | New Nelson (John Haig) |
| 608 | Remembering The Kanji (James Heisig) |
| 654 | Remembering The Kanji, 6th edition (James Heisig) |
| 86 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 416 | Tuttle Kanji Cards (Alexander Kask) |
| 458 | 2001 Kanji |
| 5b8.2 | The Kanji Dictionary |
| 2-2-11 | SKIP code |
| 2-5-8 | SKIP code |
| 0033.6 | Four corner code |
| 1-16-53 | JIS X 0208-1997 kuten code |
| 610f | Unicode hex code |