| 541 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 638 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 609 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 788 | A New Dictionary of Kanji Usage |
| 3683 | Classic Nelson (Andrew Nelson) |
| 637 | Essential Kanji (P.G. O’Neill) |
| 837 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 334 | Japanese Names (P.G. O’Neill) |
| 543 | Kanji and Kana (Spahn and Hadamitzky) |
| 552 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 737 | Kanji in Context (Nishiguchi and Kono) |
| 1576 | Kodansha Compact Kanji Guide |
| 3963 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2040 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2754 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1259 | Les Kanjis dans la tete (Yves Maniette) |
| 28842 | Morohashi |
| 3197 | New Japanese English Character Dictionary (Jack Halpern) |
| 4696 | New Nelson (John Haig) |
| 1251 | Remembering The Kanji (James Heisig) |
| 1340 | Remembering The Kanji, 6th edition (James Heisig) |
| 472 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 4
JLPT level N3
803 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 老 【ロウ】 old age, age, old people, the old, the aged, senior, elder, I, me, my humble self
- 老化 【ロウカ】 ageing, aging, senile deterioration
- 養老 【ヨウロウ】 making provision for the elderly, making provision for one's old age, spending one's old age in comfort, Yōrō era (717.11.17-724.2.4)
- 敬老 【ケイロウ】 respect for the aged
Kun reading compounds
- 老いる 【おいる】 to age, to grow old
- 老ける 【ふける】 to age, to grow old (esp. in appearance), to show marks of age
Readings
- Japanese names:
- えび、 おい、 び
- Korean:
- ro
Spanish
- envejecer
- viejo
- experimentado
- hacerse viejo
Portuguese
- velho
- velhice
- envelhecer
French
- vieillard
- âgé
- vieillir
| 1456 | 2001 Kanji |
| 2k4.5 | The Kanji Dictionary |
| 3-4-2 | SKIP code |
| 4471.1 | Four corner code |
| 1-47-23 | JIS X 0208-1997 kuten code |
| 8001 | Unicode hex code |
Jōyō kanji, taught in junior high
JLPT level N1
1891 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 朽壊 【キュウカイ】 rotting and crumbling
- 朽廃 【キュウハイ】 decay, dilapidation
- 若朽 【ジャッキュウ】 being young yet unambitious, being young but lacking spirit
- 腐朽 【フキュウ】 decay, deterioration, rot
Kun reading compounds
- 朽ちる 【くちる】 to rot, to decay, to die in obscurity, to be forgotten with time
Readings
- Japanese names:
- くつ
- Korean:
- hu
Spanish
- descomposición
- putrefacción
- decadencia
- descomponerse
- corromperse
- pudrirse
- arruinarse
Portuguese
- decair
- apodrecer
- permanecer recluso
French
- délabré
- pourri
- rester reclus
| 1150 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1827 | A New Dictionary of Kanji Usage |
| 2175 | Classic Nelson (Andrew Nelson) |
| 1683 | Essential Kanji (P.G. O’Neill) |
| 1417 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 419 | Japanese Names (P.G. O’Neill) |
| 1628 | Kanji and Kana (Spahn and Hadamitzky) |
| 1738 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1787 | Kanji in Context (Nishiguchi and Kono) |
| 1069 | Kodansha Compact Kanji Guide |
| 1015 | Kodansha Kanji Dictionary (Jack Halpern) |
| 550 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 727 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1251 | Les Kanjis dans la tete (Yves Maniette) |
| 14439 | Morohashi |
| 821 | New Japanese English Character Dictionary (Jack Halpern) |
| 2545 | New Nelson (John Haig) |
| 1243 | Remembering The Kanji (James Heisig) |
| 1331 | Remembering The Kanji, 6th edition (James Heisig) |
| 1080 | Tuttle Kanji Cards (Alexander Kask) |
| 1852 | 2001 Kanji |
| 4a2.6 | The Kanji Dictionary |
| 1-4-2 | SKIP code |
| 1-4-3 | SKIP code |
| 4192.7 | Four corner code |
| 1-21-64 | JIS X 0208-1997 kuten code |
| 673d | Unicode hex code |