| 80 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 137 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 124 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 317 | A New Dictionary of Kanji Usage |
| 5403 | Classic Nelson (Andrew Nelson) |
| 286 | Essential Kanji (P.G. O’Neill) |
| 284 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1486 | Japanese Names (P.G. O’Neill) |
| 2.14 | Japanese for Busy People |
| 206 | Kanji and Kana (Spahn and Hadamitzky) |
| 206 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 45 | Kanji in Context (Nishiguchi and Kono) |
| 1940 | Kodansha Compact Kanji Guide |
| 3406 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1754 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2388 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 176 | Les Kanjis dans la tete (Yves Maniette) |
| 48040 | Morohashi |
| 2740 | New Japanese English Character Dictionary (Jack Halpern) |
| 7052 | New Nelson (John Haig) |
| 174 | Remembering The Kanji (James Heisig) |
| 186 | Remembering The Kanji, 6th edition (James Heisig) |
| 204 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 2
JLPT level N4
573 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 黒煙 【コクエン】 black smoke
- 黒衣 【コクイ】 black clothes
- 大黒 【ダイコク】 god of wealth, monk's wife
- 二黒 【ジコク】 second of nine traditional astrological signs (corresponding to Saturn and southwest)
Kun reading compounds
- 黒 【くろ】 black, black stone, guilt, guilty person
- 黒い 【くろい】 black, dark, blackish, sun-tanned (skin), suspicious, criminal, illicit, darkened and dirty, sooty, covered in dirt, evil, wicked, black-hearted, inauspicious, ill-boding, unlucky
- 黒ずむ 【くろずむ】 to blacken, to darken
- 黒い 【くろい】 black, dark, blackish, sun-tanned (skin), suspicious, criminal, illicit, darkened and dirty, sooty, covered in dirt, evil, wicked, black-hearted, inauspicious, ill-boding, unlucky
- 黒色 【くろいろ】 black (colour, color)
Readings
- Korean:
- heug
Spanish
- negro
- maldad
Portuguese
- preto
French
- noir
| 3640 | 2001 Kanji |
| 4d7.2 | The Kanji Dictionary |
| 2-7-4 | SKIP code |
| 6033.1 | Four corner code |
| 1-25-85 | JIS X 0208-1997 kuten code |
| 9ed2 | Unicode hex code |
Jōyō kanji, taught in grade 2
JLPT level N2
382 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 線 【セン】 line, stripe, stria, line (e.g. telephone line), wire, ray (e.g. X-ray), beam, line (e.g. of a railroad), track, route, lane, outline, contours, form, level, division, line (of action), position, approach, policy, principle, impression one leaves, air one gives off
- 繊維 【センイ】 fibre, fiber, textile
- 横線 【オウセン】 horizontal line
- 赤外線 【セキガイセン】 infrared rays, infrared radiation
Readings
- Korean:
- seon
Spanish
- línea
- cable
- frontera
- raíl
- carril
Portuguese
- linha
- trilha
French
- ligne
- voie
| 447 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 176 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 329 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 247 | A New Dictionary of Kanji Usage |
| 3580 | Classic Nelson (Andrew Nelson) |
| 389 | Essential Kanji (P.G. O’Neill) |
| 826 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2.20 | Japanese for Busy People |
| 299 | Kanji and Kana (Spahn and Hadamitzky) |
| 299 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 841 | Kanji in Context (Nishiguchi and Kono) |
| 1551 | Kodansha Compact Kanji Guide |
| 1760 | Kodansha Kanji Dictionary (Jack Halpern) |
| 944 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1273 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1351 | Les Kanjis dans la tete (Yves Maniette) |
| 27641 | Morohashi |
| 1392 | New Japanese English Character Dictionary (Jack Halpern) |
| 4548 | New Nelson (John Haig) |
| 1339 | Remembering The Kanji (James Heisig) |
| 1438 | Remembering The Kanji, 6th edition (James Heisig) |
| 236 | Tuttle Kanji Cards (Alexander Kask) |
| 2742 | 2001 Kanji |
| 6a9.7 | The Kanji Dictionary |
| 1-6-9 | SKIP code |
| 2693.2 | Four corner code |
| 1-32-94 | JIS X 0208-1997 kuten code |
| 7dda | Unicode hex code |