| 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 5
JLPT level N1
660 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 素 【ソ】 plain, white silk, prime
- 素案 【ソアン】 rough plan, draft
- 栄養素 【エイヨウソ】 nutrient
- 酵素 【コウソ】 enzyme
- 素 【ス】 one's nature, one's feelings, oneself, plain, unadorned, undecorated, unadulterated, au naturel, mere, poor, exceedingly
- 素顔 【スガオ】 face with no make-up, unpainted face, true face (of a country, celebrity, etc.), real face, true picture, real nature, sober face, sobriety
- 空素 【カラス】 dealt hand containing only 1-point cards (scoring combination)
- 鉤素 【ハリス】 snell (fishing), leader, trace, cast
Kun reading compounds
- 元 【もと】 origin, source, beginning, basis, base, foundation, root, cause, (raw) material, ingredient, base, mix (e.g. for a cake), (soup) stock, (one's) side, capital, principal, cost price, root (of a plant), (tree) trunk, part (of a brush, chopsticks, etc.) one holds (with the hand), first three lines of a waka, counter for plants or trees, counter for falcons (in falconry)
- 元より 【もとより】 from the beginning, from the first, all along, originally, of course, not to mention ..., not only ... but also ..., to say nothing of ...
- 味の素 【あじのもと】 Ajinomoto, brand name of monosodium glutamate (MSG)
- 味の素 【あじのもと】 Ajinomoto Co. Inc.
Readings
- Korean:
- so
Spanish
- materia prima
- elemental
- normal
- usual
Portuguese
- elementar
- princípio
- descoberto
- nu
French
- élément
- principe
- nu
- découvert
| 658 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 759 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 737 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 717 | A New Dictionary of Kanji Usage |
| 3511 | Classic Nelson (Andrew Nelson) |
| 797 | Essential Kanji (P.G. O’Neill) |
| 1623 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1707 | Japanese Names (P.G. O’Neill) |
| 271 | Kanji and Kana (Spahn and Hadamitzky) |
| 271 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 636 | Kanji in Context (Nishiguchi and Kono) |
| 1506 | Kodansha Compact Kanji Guide |
| 3108 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1590 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2171 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1546 | Les Kanjis dans la tete (Yves Maniette) |
| 27300 | Morohashi |
| 2458 | New Japanese English Character Dictionary (Jack Halpern) |
| 4456 | New Nelson (John Haig) |
| 1532 | Remembering The Kanji (James Heisig) |
| 1652 | Remembering The Kanji, 6th edition (James Heisig) |
| 500 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 716 | Tuttle Kanji Cards (Alexander Kask) |
| 1441 | 2001 Kanji |
| 6a4.12 | The Kanji Dictionary |
| 2-4-6 | SKIP code |
| 5090.3 | Four corner code |
| 1-33-39 | JIS X 0208-1997 kuten code |
| 7d20 | Unicode hex code |