| 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 1
JLPT level N5
163 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 百 【ヒャク】 hundred, 100
- １００億 【ヒャクオク】 10,000,000,000, ten billion
- ９００ 【キュウヒャク】 900, nine hundred, fool, idiot
- ５００ 【ゴヒャク】 500, five hundred, many
- 凡百 【ボンピャク】 various, many, all kinds of
Kun reading compounds
- 百 【もも】 hundred, 100, (a great) many
- 百重 【ももえ】 piling up highly, becoming a large pile
Readings
- Japanese names:
- お、 ど、 どう、 なり、 ひゃっ、 ひゅく、 も、 もんど、 ゆう
- Korean:
- baeg, maeg
Spanish
- cien
- muchos
Portuguese
- cem
French
- cent
| 130 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 11 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 67 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 73 | A New Dictionary of Kanji Usage |
| 33 | Classic Nelson (Andrew Nelson) |
| 82 | Essential Kanji (P.G. O’Neill) |
| 74 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 265 | Japanese Names (P.G. O’Neill) |
| 1.A | Japanese for Busy People |
| 14 | Kanji and Kana (Spahn and Hadamitzky) |
| 14 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 11 | Kanji in Context (Nishiguchi and Kono) |
| 1363 | Kodansha Compact Kanji Guide |
| 2519 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1279 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1746 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 38 | Les Kanjis dans la tete (Yves Maniette) |
| 22679 | Morohashi |
| 2026 | New Japanese English Character Dictionary (Jack Halpern) |
| 3864 | New Nelson (John Haig) |
| 38 | Remembering The Kanji (James Heisig) |
| 38 | Remembering The Kanji, 6th edition (James Heisig) |
| 218 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 50 | Tuttle Kanji Cards (Alexander Kask) |
| 3178 | 2001 Kanji |
| 4c2.3 | The Kanji Dictionary |
| 2-2-4 | SKIP code |
| 4-6-1 | SKIP code |
| 1060.0 | Four corner code |
| 1-41-20 | JIS X 0208-1997 kuten code |
| 767e | Unicode hex code |