| 204 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 290 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 272 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 426 | A New Dictionary of Kanji Usage |
| 3180 | Classic Nelson (Andrew Nelson) |
| 583 | Essential Kanji (P.G. O’Neill) |
| 231 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 875 | Japanese Names (P.G. O’Neill) |
| 2.8 | Japanese for Busy People |
| 896 | Kanji and Kana (Spahn and Hadamitzky) |
| 918 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 297 | Kanji in Context (Nishiguchi and Kono) |
| 1398 | Kodansha Compact Kanji Guide |
| 1456 | Kodansha Kanji Dictionary (Jack Halpern) |
| 771 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1046 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 682 | Les Kanjis dans la tete (Yves Maniette) |
| 24080 | Morohashi |
| 1132 | New Japanese English Character Dictionary (Jack Halpern) |
| 3991 | New Nelson (John Haig) |
| 675 | Remembering The Kanji (James Heisig) |
| 729 | Remembering The Kanji, 6th edition (James Heisig) |
| 284 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 325 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 3
JLPT level N4
336 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 研究員 【ケンキュウイン】 researcher, lab worker
- 研究 【ケンキュウ】 study, research, investigation
- 予研 【ヨケン】 National Institute of Health
- 技研 【ギケン】 technical research institute
Kun reading compounds
- 研ぐ 【とぐ】 to sharpen, to hone, to whet, to grind, to wash (rice), to scour, to polish, to burnish
Readings
- Japanese names:
- のり
- Korean:
- yeon
Spanish
- estudio
- afilar
- pulir
Portuguese
- polir
- estudar
- afiar
French
- polir
- étudier
- aiguiser
| 3355 | 2001 Kanji |
| 5a4.1 | The Kanji Dictionary |
| 1-5-4 | SKIP code |
| 1164.0 | Four corner code |
| 1-24-06 | JIS X 0208-1997 kuten code |
| 7814 | Unicode hex code |
Jōyō kanji, taught in grade 1
JLPT level N3
342 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 石 【セキ】 counter for jewels in a watch, counter for transistors, diodes, etc. in an electronic product
- 石材 【セキザイ】 (building) stone
- 一石 【イッセキ】 one game (of go)
- 投石 【トウセキ】 stone throwing
- 石神 【シャクジン】 stone which is worshipped, image of a god in stone
- 石南花 【シャクナゲ】 rhododendron
- 電磁石 【デンジシャク】 electromagnet
- 界磁石 【カイジシャク】 field magnet
- 石 【コク】 koku, traditional unit of volume, approx. 180.4 litres, measure of a Japanese-style boat's loading capacity (approx. 278.26 liters)
- 石高 【コクダカ】 (crop) yield, stipend (orig. assessed on the basis of a crop), salary
- 一石 【イッコク】 one koku (measure)
Kun reading compounds
- 石 【いし】 stone, jewel, precious stone, flint (in a lighter), stone, stone (in the bladder, kidney etc.), calculus
- 石垣 【いしがき】 stone wall
- 墓石 【ぼせき】 tombstone, gravestone
- 敷石 【しきいし】 paving stone, pavement
Readings
- Japanese names:
- いさ、 いす、 いわ、 し、 せっく、 と
- Korean:
- seog
Spanish
- piedra
Portuguese
- pedra
French
- pierre
| 44 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 72 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 45 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 276 | A New Dictionary of Kanji Usage |
| 3176 | Classic Nelson (Andrew Nelson) |
| 102 | Essential Kanji (P.G. O’Neill) |
| 763 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 172 | Japanese Names (P.G. O’Neill) |
| 78 | Kanji and Kana (Spahn and Hadamitzky) |
| 78 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 102 | Kanji in Context (Nishiguchi and Kono) |
| 1397 | Kodansha Compact Kanji Guide |
| 3689 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1884 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2564 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 114 | Les Kanjis dans la tete (Yves Maniette) |
| 24024 | Morohashi |
| 2971 | New Japanese English Character Dictionary (Jack Halpern) |
| 3985 | New Nelson (John Haig) |
| 113 | Remembering The Kanji (James Heisig) |
| 118 | Remembering The Kanji, 6th edition (James Heisig) |
| 347 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 44 | Tuttle Kanji Cards (Alexander Kask) |
| 3377 | 2001 Kanji |
| 5a0.1 | The Kanji Dictionary |
| 3-2-3 | SKIP code |
| 1026.0 | Four corner code |
| 1060.0 | Four corner code |
| 1-32-48 | JIS X 0208-1997 kuten code |
| 77f3 | Unicode hex code |