| 4 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 4 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 26 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 18 | A New Dictionary of Kanji Usage |
| 1025 | Classic Nelson (Andrew Nelson) |
| 6 | Essential Kanji (P.G. O’Neill) |
| 35 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 188 | Japanese Names (P.G. O’Neill) |
| 1.A | Japanese for Busy People |
| 6 | Kanji and Kana (Spahn and Hadamitzky) |
| 6 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 4 | Kanji in Context (Nishiguchi and Kono) |
| 335 | Kodansha Compact Kanji Guide |
| 3778 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1928 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2620 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 4 | Les Kanjis dans la tete (Yves Maniette) |
| 4682 | Morohashi |
| 3044 | New Japanese English Character Dictionary (Jack Halpern) |
| 938 | New Nelson (John Haig) |
| 4 | Remembering The Kanji (James Heisig) |
| 4 | Remembering The Kanji, 6th edition (James Heisig) |
| 114 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 37 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 1
JLPT level N5
47 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 四 【シ】 four, 4
- ４月 【シガツ】 April, fourth month in the lunar calendar
- 十四 【ジュウシ】 fourteen, 14
- 炭素１４ 【タンソジュウシ】 carbon-14
Kun reading compounds
- 四 【し】 four, 4
- 四畳半 【よじょうはん】 four and a half tatami mats, four-and-a-half-mat room, small room esp. for assignations
- 四つ 【よっつ】 four, 4, four years of age, ten o'clock (in the old time system), burakumin, cross grips
- 四つ角 【よつかど】 four corners, crossroads, intersecting street, street corner
- 四つ 【よっつ】 four, 4, four years of age, ten o'clock (in the old time system), burakumin, cross grips
- 四つの自由 【よっつのじゆう】 the Four Freedoms (as defined by Franklin D. Roosevelt: freedom of speech, freedom of worship, freedom from want, freedom from fear)
- 四 【し】 four, 4
- ４０ 【よんじゅう】 forty, 40
- 十四 【じゅうし】 fourteen, 14
- 軽四 【けいよん】 four-wheeled light vehicle
Readings
- Japanese names:
- あ、 つ、 よつ
- Korean:
- sa
Spanish
- cuatro
- 4
Portuguese
- quatro
French
- quatre
| 3675 | 2001 Kanji |
| 3s2.2 | The Kanji Dictionary |
| 3-3-2 | SKIP code |
| 4-5-1 | SKIP code |
| 6021.0 | Four corner code |
| 1-27-45 | JIS X 0208-1997 kuten code |
| 56db | Unicode hex code |
Jōyō kanji, taught in junior high
JLPT level N1
1773 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 弦 【ゲン】 bowstring, string (of a shamisen, etc.), stringed instrument, chord, hypotenuse
- 弦楽 【ゲンガク】 music for strings, string music
- 三弦 【サンゲン】 shamisen, samisen, sanxian (Chinese lute), the three string instruments used in gagaku (biwa, wagon and sou), three strings, three-stringed instrument
- 移弦 【イゲン】 string-crossing (violin, cello, etc.)
Kun reading compounds
- 弦 【つる】 bowstring, string (of shamisen, guitar, violin, etc.), bail (arched pot handle), diagonal levelling wire across the top of a masu
- 弦音 【つるおと】 sound of vibrating bowstring
Readings
- Korean:
- hyeon
Spanish
- cuerda (arco
- instrumento musical)
- media luna
- hipotenusa
Portuguese
- Corda (arco
- violão)
- corda
- hipotenusa
French
- corde d'arc
- corde
- hypoténuse
| 1228 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1617 | A New Dictionary of Kanji Usage |
| 1568 | Classic Nelson (Andrew Nelson) |
| 1624 | Essential Kanji (P.G. O’Neill) |
| 1270 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1345 | Japanese Names (P.G. O’Neill) |
| 1226 | Kanji and Kana (Spahn and Hadamitzky) |
| 1290 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1446 | Kanji in Context (Nishiguchi and Kono) |
| 608 | Kodansha Compact Kanji Guide |
| 343 | Kodansha Kanji Dictionary (Jack Halpern) |
| 213 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 257 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1398 | Les Kanjis dans la tete (Yves Maniette) |
| 9754 | Morohashi |
| 287 | New Japanese English Character Dictionary (Jack Halpern) |
| 1688 | New Nelson (John Haig) |
| 1386 | Remembering The Kanji (James Heisig) |
| 1487 | Remembering The Kanji, 6th edition (James Heisig) |
| 1169 | Tuttle Kanji Cards (Alexander Kask) |
| 3571 | 2001 Kanji |
| 3h5.1 | The Kanji Dictionary |
| 1-3-5 | SKIP code |
| 1023.2 | Four corner code |
| 1-24-25 | JIS X 0208-1997 kuten code |
| 5f26 | Unicode hex code |