| 865 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 804 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 783 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1050 | A New Dictionary of Kanji Usage |
| 4255 | Classic Nelson (Andrew Nelson) |
| 764 | Essential Kanji (P.G. O’Neill) |
| 886 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 916 | Kanji and Kana (Spahn and Hadamitzky) |
| 938 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 522 | Kanji in Context (Nishiguchi and Kono) |
| 1636 | Kodansha Compact Kanji Guide |
| 1565 | Kodansha Kanji Dictionary (Jack Halpern) |
| 827 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1132 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 476 | Les Kanjis dans la tete (Yves Maniette) |
| 34417 | Morohashi |
| 1222 | New Japanese English Character Dictionary (Jack Halpern) |
| 5484 | New Nelson (John Haig) |
| 465 | Remembering The Kanji (James Heisig) |
| 504 | Remembering The Kanji, 6th edition (James Heisig) |
| 802 | Tuttle Kanji Cards (Alexander Kask) |
duplicate, double, compound, multiple
- On:
- フク
Jōyō kanji, taught in grade 5
JLPT level N2
915 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 複 【フク】 compound, composite, multiple, re-, bi-, doubles (tennis, badminton, etc.), place bet (in horse racing, etc.), show bet, bet that predicts a top 2 or top 3 finish (depending on number of horses, etc. in race)
- 複合 【フクゴウ】 composite, combined, complex
- 重複 【チョウフク】 duplication, repetition, overlapping, redundancy, restoration
- 遺伝子重複 【イデンシチョウフク】 gene duplication
Readings
- Korean:
- bog, bu
Spanish
- repetir
- duplicar
- doble
- compuesto
- múltiple
Portuguese
- duplicação
- duplicar
- composto
- múltiplo
French
- duplication
- copie
- composé
- multiple
- compliqué
| 667 | 2001 Kanji |
| 5e9.3 | The Kanji Dictionary |
| 1-5-9 | SKIP code |
| 3824.7 | Four corner code |
| 1-42-03 | JIS X 0208-1997 kuten code |
| 8907 | Unicode hex code |
Jōyō kanji, taught in grade 2
JLPT level N3
148 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 数 【スウ】 several, a few, a number of, number, quantity, amount, counting, calculation, figures, numbers, number, numeral, figure, number, destiny, fate, outcome, course of events, trend
- 数億年 【スウオクネン】 several hundred million years
- 複数 【フクスウ】 plural, multiple, plural (number)
- 枚数 【マイスウ】 the number of flat things, win-loss difference which influences the ranking of wrestlers
- 数 【スウ】 several, a few, a number of, number, quantity, amount, counting, calculation, figures, numbers, number, numeral, figure, number, destiny, fate, outcome, course of events, trend
- 数億年 【スウオクネン】 several hundred million years
- 数牌 【シューパイ】 suited tiles
Kun reading compounds
- 数 【かず】 number, amount
- 数多く 【かずおおく】 in great numbers
- 手数 【てすう】 trouble, bother, number of moves (in go, shogi, etc.), number of punches
- 口数 【くちかず】 number of words a person speaks, number of dependents, number of mouths to feed, number of shares, items, applications, etc.
- 数える 【かぞえる】 to count, to enumerate
- 屡々 【しばしば】 often, again and again, frequently, repeatedly
Readings
- Japanese names:
- じゅ
- Korean:
- su, chog
Spanish
- número
- cifra
- contar
Portuguese
- número
- vigor
- destino
- lei
- figuras
French
- nombre
- compter
- destin
- loi
- chiffres
| 262 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 168 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 151 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 188 | A New Dictionary of Kanji Usage |
| 2057 | Classic Nelson (Andrew Nelson) |
| 429 | Essential Kanji (P.G. O’Neill) |
| 592 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2169 | Japanese Names (P.G. O’Neill) |
| 3.6 | Japanese for Busy People |
| 225 | Kanji and Kana (Spahn and Hadamitzky) |
| 225 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 529 | Kanji in Context (Nishiguchi and Kono) |
| 945 | Kodansha Compact Kanji Guide |
| 2245 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1170 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1591 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 938 | Les Kanjis dans la tete (Yves Maniette) |
| 13319 | Morohashi |
| 1790 | New Japanese English Character Dictionary (Jack Halpern) |
| 2353 | New Nelson (John Haig) |
| 929 | Remembering The Kanji (James Heisig) |
| 998 | Remembering The Kanji, 6th edition (James Heisig) |
| 159 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 227 | Tuttle Kanji Cards (Alexander Kask) |
| 1066 | 2001 Kanji |
| 4i9.1 | The Kanji Dictionary |
| 1-9-4 | SKIP code |
| 9844.0 | Four corner code |
| 1-31-84 | JIS X 0208-1997 kuten code |
| 6570 | Unicode hex code |