| 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 grade 2
JLPT level N3
527 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 光学 【コウガク】 optics
- 光栄 【コウエイ】 honour, honor, glory, privilege
- 脚光 【キャッコウ】 footlight, limelight
- 発光 【ハッコウ】 emission (of light), radiation (of light), luminescence
Kun reading compounds
- 光る 【ひかる】 to shine, to glitter, to be bright
- 光る棒 【ひかるぼう】 glowstick, neon light stick
- 光 【ひかり】 light, illumination, ray, beam, gleam, glow, happiness, hope, influence, power, vision, eyesight, optical fiber, optical fibre
- 光り輝く 【ひかりかがやく】 to shine, to glitter
- 越光 【こしひかり】 Koshihikari (variety of rice)
- 柔らかな光 【やわらかなひかり】 soft light
Readings
- Japanese names:
- あき、 あきら、 こお、 てる、 ひこ、 み、 みつ
- Korean:
- gwang
Spanish
- rayo
- luz
- paisaje
- honor
- brillar
- brillo
Portuguese
- raio
- luz
French
- rayon
- lumière
| 72 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 129 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 116 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 417 | A New Dictionary of Kanji Usage |
| 1358 | Classic Nelson (Andrew Nelson) |
| 217 | Essential Kanji (P.G. O’Neill) |
| 123 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 281 | Japanese Names (P.G. O’Neill) |
| 138 | Kanji and Kana (Spahn and Hadamitzky) |
| 138 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 464 | Kanji in Context (Nishiguchi and Kono) |
| 143 | Kodansha Compact Kanji Guide |
| 3043 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1550 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2121 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 120 | Les Kanjis dans la tete (Yves Maniette) |
| 1350 | Morohashi |
| 2391 | New Japanese English Character Dictionary (Jack Halpern) |
| 349 | New Nelson (John Haig) |
| 119 | Remembering The Kanji (James Heisig) |
| 125 | Remembering The Kanji, 6th edition (James Heisig) |
| 345 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 121 | Tuttle Kanji Cards (Alexander Kask) |
| 1057 | 2001 Kanji |
| 3n3.2 | The Kanji Dictionary |
| 2-4-2 | SKIP code |
| 2-3-3 | SKIP code |
| 9021.1 | Four corner code |
| 1-24-87 | JIS X 0208-1997 kuten code |
| 5149 | Unicode hex code |