| 618 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 715 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 689 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1027 | A New Dictionary of Kanji Usage |
| 4789 | Classic Nelson (Andrew Nelson) |
| 819 | Essential Kanji (P.G. O’Neill) |
| 1838 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 516 | Kanji and Kana (Spahn and Hadamitzky) |
| 525 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1420 | Kanji in Context (Nishiguchi and Kono) |
| 1797 | Kodansha Compact Kanji Guide |
| 1968 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1049 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1415 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1449 | Les Kanjis dans la tete (Yves Maniette) |
| 39871 | Morohashi |
| 1563 | New Japanese English Character Dictionary (Jack Halpern) |
| 6177 | New Nelson (John Haig) |
| 1437 | Remembering The Kanji (James Heisig) |
| 1545 | Remembering The Kanji, 6th edition (James Heisig) |
| 791 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 5
JLPT level N1
1218 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 酸 【サン】 acid, sourness, sour taste
- 酸化 【サンカ】 oxidation, oxidization
- 炭酸 【タンサン】 carbonic acid, carbonated water, carbonated drink, baking soda, sodium carbonate
- アミノ酸 【アミノサン】 amino acid
Kun reading compounds
- 酸い 【すい】 sour, acid
- 酸葉 【すいば】 sorrel (Rumex acetosa), Common sorrel, garden sorrel, spinach dock
Readings
- Korean:
- san
Spanish
- ácido
- agrio
Portuguese
- ácido
- amargo
- azedo
- picante
French
- acide
- aigre
- amer
- sur (goût)
| 3267 | 2001 Kanji |
| 7e7.2 | The Kanji Dictionary |
| 1-7-7 | SKIP code |
| 1364.7 | Four corner code |
| 1-27-32 | JIS X 0208-1997 kuten code |
| 9178 | Unicode hex code |
Jōyō kanji, taught in grade 3
JLPT level N3
414 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 葉 【ヨウ】 counter for leaves, pieces of paper, etc., counter for boats
- 葉胃 【ヨウイ】 omasum, psalterium, third compartment of the stomach in ruminants
- 紅葉 【コウヨウ】 leaves turning red (in autumn), red leaves, autumn colours, fall colors
- 前頭葉 【ゼントウヨウ】 frontal lobe
Kun reading compounds
- 葉 【は】 leaf, blade (of grass), (pine) needle
- 葉書 【はがき】 postcard, memo, note, card
- 一葉 【いちよう】 one leaf, one page, one sheet, one card, one photo, one boat
- 枝葉 【えだは】 branches and leaves, foliage, unimportant details, nonessentials, side issue, digression
Readings
- Japanese names:
- よ、 わ
- Korean:
- yeob, seob
Spanish
- hoja
- contador de cosas planas
- follaje
Portuguese
- folha
- avião
- ponta
- agulha
- lâmina
- lança
- sufixo p/ contagem de coisas chatas
French
- feuille
- lobe
- aiguille
- brin (herbe)
- fragment
- compteur d'objets plats
| 327 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 428 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 405 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 405 | A New Dictionary of Kanji Usage |
| 4001 | Classic Nelson (Andrew Nelson) |
| 179 | Essential Kanji (P.G. O’Neill) |
| 870 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1991 | Japanese Names (P.G. O’Neill) |
| 253 | Kanji and Kana (Spahn and Hadamitzky) |
| 253 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 569 | Kanji in Context (Nishiguchi and Kono) |
| 663 | Kodansha Compact Kanji Guide |
| 2912 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1497 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2024 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 233 | Les Kanjis dans la tete (Yves Maniette) |
| 31387P | Morohashi |
| 2321 | New Japanese English Character Dictionary (Jack Halpern) |
| 5129 | New Nelson (John Haig) |
| 228 | Remembering The Kanji (James Heisig) |
| 243 | Remembering The Kanji, 6th edition (James Heisig) |
| 275 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 412 | Tuttle Kanji Cards (Alexander Kask) |
| 1964 | 2001 Kanji |
| 3k9.21 | The Kanji Dictionary |
| 2-3-9 | SKIP code |
| 2-3-8 | SKIP code |
| 4490.4 | Four corner code |
| 1-45-53 | JIS X 0208-1997 kuten code |
| 8449 | Unicode hex code |