| 283 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 374 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 353 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 327 | A New Dictionary of Kanji Usage |
| 4844 | Classic Nelson (Andrew Nelson) |
| 242 | Essential Kanji (P.G. O’Neill) |
| 976 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1948 | Japanese Names (P.G. O’Neill) |
| 2.1 | Japanese for Busy People |
| 312 | Kanji and Kana (Spahn and Hadamitzky) |
| 312 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 147 | Kanji in Context (Nishiguchi and Kono) |
| 1814 | Kodansha Compact Kanji Guide |
| 2147 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1126 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1527 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 854 | Les Kanjis dans la tete (Yves Maniette) |
| 40285 | Morohashi |
| 1711 | New Japanese English Character Dictionary (Jack Halpern) |
| 6253 | New Nelson (John Haig) |
| 846 | Remembering The Kanji (James Heisig) |
| 909 | Remembering The Kanji, 6th edition (James Heisig) |
| 449 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 422 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 3
JLPT level N2
672 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 鉄 【テツ】 iron (Fe), steel, iron (will, discipline, lady, etc.), railway, railway enthusiast
- 鉄製 【テッセイ】 made of iron
- 国鉄 【コクテツ】 national railway, Japan National Railways (1949-1987)
- 新日本製鐵 【シンニッポンセイテツ】 Nippon Steel Corporation
Kun reading compounds
- 黒金 【くろがね】 iron
Readings
- Japanese names:
- けん、 てっ
- Korean:
- cheol
Spanish
- hierro
- acero
Portuguese
- ferro
French
- fer
| 2863 | 2001 Kanji |
| 8a5.6 | The Kanji Dictionary |
| 1-8-5 | SKIP code |
| 8513.0 | Four corner code |
| 1-37-20 | JIS X 0208-1997 kuten code |
| 9244 | Unicode hex code |
cord, rope, searching, inquiring
- On:
- サク
Jōyō kanji, taught in junior high
JLPT level N1
1127 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 索 【サク】 rope, cord
- 索引 【サクイン】 index (in a book)
- 模索 【モサク】 groping (for), fumbling around (for), searching (for an answer, solution, etc.), trying to find
- 神経索 【シンケイサク】 nerve cord
Readings
- Korean:
- sag, saeg
Spanish
- soga
- cordón
- cuerda
- buscar
- disperso
Portuguese
- corda
- cabo
French
- câble
- corde
- chercher (index)
| 1299 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1155 | A New Dictionary of Kanji Usage |
| 782 | Classic Nelson (Andrew Nelson) |
| 1762 | Essential Kanji (P.G. O’Neill) |
| 1625 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1703 | Japanese Names (P.G. O’Neill) |
| 1059 | Kanji and Kana (Spahn and Hadamitzky) |
| 1104 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1301 | Kanji in Context (Nishiguchi and Kono) |
| 1505 | Kodansha Compact Kanji Guide |
| 3105 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1587 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2168 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1377 | Les Kanjis dans la tete (Yves Maniette) |
| 27306 | Morohashi |
| 2455 | New Japanese English Character Dictionary (Jack Halpern) |
| 4449 | New Nelson (John Haig) |
| 1365 | Remembering The Kanji (James Heisig) |
| 1465 | Remembering The Kanji, 6th edition (James Heisig) |
| 1378 | Tuttle Kanji Cards (Alexander Kask) |
| 1541 | 2001 Kanji |
| 2k8.2 | The Kanji Dictionary |
| 2-4-6 | SKIP code |
| 2-2-8 | SKIP code |
| 4090.3 | Four corner code |
| 1-26-87 | JIS X 0208-1997 kuten code |
| 7d22 | Unicode hex code |