| 729 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 623 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 593 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 117 | A New Dictionary of Kanji Usage |
| 4274 | Classic Nelson (Andrew Nelson) |
| 262 | Essential Kanji (P.G. O’Neill) |
| 887 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1218 | Japanese Names (P.G. O’Neill) |
| 3.16 | Japanese for Busy People |
| 419 | Kanji and Kana (Spahn and Hadamitzky) |
| 425 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 424 | Kanji in Context (Nishiguchi and Kono) |
| 1639 | Kodansha Compact Kanji Guide |
| 3263 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1683 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2290 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1618 | Les Kanjis dans la tete (Yves Maniette) |
| 34768P | Morohashi |
| 2635 | New Japanese English Character Dictionary (Jack Halpern) |
| 5515 | New Nelson (John Haig) |
| 1604 | Remembering The Kanji (James Heisig) |
| 1730 | Remembering The Kanji, 6th edition (James Heisig) |
| 78 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 536 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 4
JLPT level N3
106 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 要 【ヨウ】 main point, essential point, important thing, necessity, need, requirement
- 要因 【ヨウイン】 main cause, primary factor
- 所要 【ショヨウ】 required, needed, necessary
- 法要 【ホウヨウ】 Buddhist memorial service
Kun reading compounds
- 要る 【いる】 to be needed, to be necessary, to be required, to be wanted, to need, to want
- 要 【かなめ】 pivot, vital point, cornerstone, keystone, Japanese photinia
- 要石 【かなめいし】 keystone
Readings
- Japanese names:
- とし
- Korean:
- yo
Spanish
- necesidad
- punto central
- esencia
- necesitar
Portuguese
- necessidade
- ponto principal
- essência
- pivô
- chave para
French
- besoin
- point principal
- pivot
- essentiel
- point clef
| 3269 | 2001 Kanji |
| 3e6.11 | The Kanji Dictionary |
| 2-6-3 | SKIP code |
| 1040.4 | Four corner code |
| 1-45-55 | JIS X 0208-1997 kuten code |
| 8981 | Unicode hex code |
Jōyō kanji, taught in grade 5
JLPT level N3
636 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 因 【イン】 cause, factor, hetu (direct cause, esp. as opposed to indirect conditions), the basis of one's argument (in hetuvidya)
- 因縁 【インネン】 fate, destiny, connection, tie, bond, origin, pretext, justification, hetu and prataya (direct causes and indirect conditions, which underlie the actions of all things)
- 主因 【シュイン】 primary cause, main factor
- 勝因 【ショウイン】 cause of victory, reason for (one's) success
Kun reading compounds
- 依る 【よる】 to be due to, to be caused by, to depend on, to turn on, to be based on, to come from, to be based at (a location, an organization), to be headquartered at
- よるところが大きい 【よるところがおおきい】 depending largely on, playing a large role in, due largely to
- 因む 【ちなむ】 to be associated (with), to be connected (with)
Readings
- Japanese names:
- て
- Korean:
- in
Spanish
- causa
- origen
- depender de
- contar con
Portuguese
- causa
- fator
- seja associado com
- contar com
- ser limitado para
French
- cause
- facteur
- associé à
- dépendre de
- limité à
| 548 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 643 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 614 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 646 | A New Dictionary of Kanji Usage |
| 1026 | Classic Nelson (Andrew Nelson) |
| 462 | Essential Kanji (P.G. O’Neill) |
| 420 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 311 | Japanese Names (P.G. O’Neill) |
| 554 | Kanji and Kana (Spahn and Hadamitzky) |
| 563 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 406 | Kanji in Context (Nishiguchi and Kono) |
| 337 | Kodansha Compact Kanji Guide |
| 3792 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1936 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2629 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 590 | Les Kanjis dans la tete (Yves Maniette) |
| 4693 | Morohashi |
| 3054 | New Japanese English Character Dictionary (Jack Halpern) |
| 939 | New Nelson (John Haig) |
| 583 | Remembering The Kanji (James Heisig) |
| 626 | Remembering The Kanji, 6th edition (James Heisig) |
| 485 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 655 | Tuttle Kanji Cards (Alexander Kask) |
| 1463 | 2001 Kanji |
| 3s3.2 | The Kanji Dictionary |
| 3-3-3 | SKIP code |
| 6043.0 | Four corner code |
| 1-16-88 | JIS X 0208-1997 kuten code |
| 56e0 | Unicode hex code |