| 4946 | Classic Nelson (Andrew Nelson) |
| 4120 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2834 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 41244 | Morohashi |
| 6389 | New Nelson (John Haig) |
Stroke order
On reading compounds
- 閏年 【ウルウドシ】 leap year
- 閏月 【ウルウヅキ】 intercalary month (lunar calendar), leap month
- 正閏 【セイジュン】 normal and leap (years), legitimate and illegitimate dynasties
Kun reading compounds
- 閏 【うるう】 embolism, intercalation
- 閏年 【うるうどし】 leap year
Readings
- Korean:
- ryun
Spanish
Portuguese
French
| 3872 | 2001 Kanji |
| 8e4.4 | The Kanji Dictionary |
| 3-8-4 | SKIP code |
| 7710.4 | Four corner code |
| 1-17-28 | JIS X 0208-1997 kuten code |
| 958f | Unicode hex code |
second (1/60 minute)
- On:
- ビョウ
Jōyō kanji, taught in grade 3
JLPT level N2
1015 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 秒 【ビョウ】 second (unit of time), arc second
- 秒速 【ビョウソク】 speed per second, velocity per second, instant, moment, a few seconds
- 壊変毎秒 【カイヘンマイビョウ】 decays per second, disintegrations per second, dps
- 閏秒 【ウルウビョウ】 leap second
Readings
- Korean:
- cho, myo
Spanish
- segundo (unidad de tiempo)
Portuguese
- segundo (1/ 60 minuto)
French
- seconde
| 499 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 403 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 380 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 831 | A New Dictionary of Kanji Usage |
| 3271 | Classic Nelson (Andrew Nelson) |
| 867 | Essential Kanji (P.G. O’Neill) |
| 779 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1152 | Kanji and Kana (Spahn and Hadamitzky) |
| 1207 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1151 | Kanji in Context (Nishiguchi and Kono) |
| 1432 | Kodansha Compact Kanji Guide |
| 1462 | Kodansha Kanji Dictionary (Jack Halpern) |
| 774 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1052 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 908 | Les Kanjis dans la tete (Yves Maniette) |
| 24952 | Morohashi |
| 1137 | New Japanese English Character Dictionary (Jack Halpern) |
| 4129 | New Nelson (John Haig) |
| 899 | Remembering The Kanji (James Heisig) |
| 965 | Remembering The Kanji, 6th edition (James Heisig) |
| 344 | Tuttle Kanji Cards (Alexander Kask) |
| 2260 | 2001 Kanji |
| 5d4.2 | The Kanji Dictionary |
| 1-5-4 | SKIP code |
| 2992.0 | Four corner code |
| 1-41-35 | JIS X 0208-1997 kuten code |
| 79d2 | Unicode hex code |