| 694 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 389 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 563 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 809 | A New Dictionary of Kanji Usage |
| 483 | Classic Nelson (Andrew Nelson) |
| 866 | Essential Kanji (P.G. O’Neill) |
| 323 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1025 | Japanese Names (P.G. O’Neill) |
| 87 | Kanji and Kana (Spahn and Hadamitzky) |
| 87 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 158 | Kanji in Context (Nishiguchi and Kono) |
| 111 | Kodansha Compact Kanji Guide |
| 122 | Kodansha Kanji Dictionary (Jack Halpern) |
| 80 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 90 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1001 | Les Kanjis dans la tete (Yves Maniette) |
| 760 | Morohashi |
| 108 | New Japanese English Character Dictionary (Jack Halpern) |
| 252 | New Nelson (John Haig) |
| 992 | Remembering The Kanji (James Heisig) |
| 1067 | Remembering The Kanji, 6th edition (James Heisig) |
| 364 | Tuttle Kanji Cards (Alexander Kask) |
double, twice, times, fold
- On:
- バイ
Jōyō kanji, taught in grade 3
JLPT level N2
714 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 倍 【バイ】 double, twice (as much), times (as much), -fold, 1-nth, 1 to n, 1 in n
- 倍増 【バイゾウ】 doubling, double
- 逓倍 【テイバイ】 multiplication (e.g. of frequencies)
- 倍々 【バイバイ】 doubling (repeatedly), multiplying
Readings
- Japanese names:
- べ、 ます
- Korean:
- bae, pae
Spanish
- doble
- veces
Portuguese
- Duplicar
- duas vezes
- tempos
- dobra
French
- double
- deux fois
- fois
- plier (en 2)
| 2177 | 2001 Kanji |
| 2a8.14 | The Kanji Dictionary |
| 1-2-8 | SKIP code |
| 2026.1 | Four corner code |
| 1-39-60 | JIS X 0208-1997 kuten code |
| 500d | Unicode hex code |
Jōyō kanji, taught in grade 5
JLPT level N2
549 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 旧 【キュウ】 old, former, ex-, the old, old things, old customs, old times, bygone days, Japan's old (lunisolar) calendar
- 旧式 【キュウシキ】 old type, old style
- 新旧 【シンキュウ】 new and old, incoming and outgoing
- 復旧 【フッキュウ】 restoration, restitution, rehabilitation
Kun reading compounds
- 古い 【ふるい】 old, aged, ancient, antiquated, antique, timeworn, long, since long ago, time-honored, of the distant past, long-ago, stale, threadbare, hackneyed, corny, old-fashioned, outmoded, out-of-date
- 元 【もと】 former, ex-, past, one-time, earlier times, the past, previous state, formerly, previously, originally, before
Readings
- Korean:
- gu
Spanish
- antiguo
- viejo
- viejos tiempos
Portuguese
- tempos antigos
- coisas antigas
- amigo velho
- ex-
- anteriores
French
- ancien temps
- anciennes choses
- ancien ami
- ancien -
- ex-
| 759 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 677 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 648 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 808 | A New Dictionary of Kanji Usage |
| 94 | Classic Nelson (Andrew Nelson) |
| 760 | Essential Kanji (P.G. O’Neill) |
| 595 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 119 | Japanese Names (P.G. O’Neill) |
| 1216 | Kanji and Kana (Spahn and Hadamitzky) |
| 1279 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1376 | Kanji in Context (Nishiguchi and Kono) |
| 964 | Kodansha Compact Kanji Guide |
| 14 | Kodansha Kanji Dictionary (Jack Halpern) |
| 5 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 5 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 35 | Les Kanjis dans la tete (Yves Maniette) |
| 13737 | Morohashi |
| 14 | New Japanese English Character Dictionary (Jack Halpern) |
| 2412 | New Nelson (John Haig) |
| 35 | Remembering The Kanji (James Heisig) |
| 35 | Remembering The Kanji, 6th edition (James Heisig) |
| 649 | Tuttle Kanji Cards (Alexander Kask) |
| 1278 | 2001 Kanji |
| 4c1.1 | The Kanji Dictionary |
| 1-1-4 | SKIP code |
| 2600.0 | Four corner code |
| 1-21-76 | JIS X 0208-1997 kuten code |
| 65e7 | Unicode hex code |