| 1865 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1876 | A New Dictionary of Kanji Usage |
| 112 | Classic Nelson (Andrew Nelson) |
| 1735 | Essential Kanji (P.G. O’Neill) |
| 1256 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2251 | Japanese Names (P.G. O’Neill) |
| 1228 | Kanji and Kana (Spahn and Hadamitzky) |
| 1292 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1820 | Kanji in Context (Nishiguchi and Kono) |
| 579 | Kodansha Compact Kanji Guide |
| 3731 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1909 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2592 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1392 | Les Kanjis dans la tete (Yves Maniette) |
| 9205 | Morohashi |
| 3008 | New Japanese English Character Dictionary (Jack Halpern) |
| 1600 | New Nelson (John Haig) |
| 1380 | Remembering The Kanji (James Heisig) |
| 1480 | Remembering The Kanji, 6th edition (James Heisig) |
| 1251 | Tuttle Kanji Cards (Alexander Kask) |
seclude, confine to a room, deep, profound, secluded, faint, dark, tranquil, calm
Jōyō kanji, taught in junior high
JLPT level N1
1996 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 幽霊 【ユウレイ】 ghost, specter, spectre, apparition, phantom
- 憂鬱 【ユウウツ】 depression, melancholy, dejection, gloom, despondency
- 幽々 【ユウユウ】 deep, dark
- 帰幽 【キユウ】 death
Kun reading compounds
- 微か 【かすか】 faint, dim, weak, slight, vague, indistinct, hazy, poor, wretched, meagre, meager, scanty
Readings
- Korean:
- yu
Spanish
- profundo
- recluir
- confinar
- el más allá
Portuguese
- isolar
- confina para um quarto
French
- isoler
- confiné
- profond
- obscur
- isolé
- faible
- sombre
- tranquille
- calme
| 1276 | 2001 Kanji |
| 3o6.6 | The Kanji Dictionary |
| 3-2-7 | SKIP code |
| 2277.0 | Four corner code |
| 1-45-09 | JIS X 0208-1997 kuten code |
| 5e7d | Unicode hex code |
Jōyō kanji, taught in grade 2
JLPT level N4
132 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 思春期 【シシュンキ】 puberty, adolescence
- 思考 【シコウ】 thought, consideration, thinking
- 相思 【ソウシ】 mutual affection, mutual love
- 哀思 【アイシ】 sad feeling
Kun reading compounds
- 思う 【おもう】 to think, to consider, to believe, to reckon, to think (of doing), to plan (to do), to judge, to assess, to regard, to imagine, to suppose, to dream, to expect, to look forward to, to feel, to be (in a state of mind), to desire, to want, to recall, to remember
- 思う存分 【おもうぞんぶん】 to one's heart's content, to one's complete satisfaction, as much as one likes, heartily, thoroughly, without restraint, to the full
Readings
- Korean:
- sa
Spanish
- pensar
- considerar
Portuguese
- pensar
French
- penser
| 84 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 147 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 131 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 149 | A New Dictionary of Kanji Usage |
| 3001 | Classic Nelson (Andrew Nelson) |
| 95 | Essential Kanji (P.G. O’Neill) |
| 173 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 966 | Japanese Names (P.G. O’Neill) |
| 2.8 | Japanese for Busy People |
| 99 | Kanji and Kana (Spahn and Hadamitzky) |
| 99 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 202 | Kanji in Context (Nishiguchi and Kono) |
| 776 | Kodansha Compact Kanji Guide |
| 3173 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1633 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2221 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 612 | Les Kanjis dans la tete (Yves Maniette) |
| 10462 | Morohashi |
| 2564 | New Japanese English Character Dictionary (Jack Halpern) |
| 1824 | New Nelson (John Haig) |
| 605 | Remembering The Kanji (James Heisig) |
| 651 | Remembering The Kanji, 6th edition (James Heisig) |
| 26 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 175 | Tuttle Kanji Cards (Alexander Kask) |
| 3658 | 2001 Kanji |
| 5f4.4 | The Kanji Dictionary |
| 2-5-4 | SKIP code |
| 6033.0 | Four corner code |
| 1-27-55 | JIS X 0208-1997 kuten code |
| 601d | Unicode hex code |