| 723 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 620 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 796 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 227 | A New Dictionary of Kanji Usage |
| 2773 | Classic Nelson (Andrew Nelson) |
| 386 | Essential Kanji (P.G. O’Neill) |
| 715 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1789 | Japanese Names (P.G. O’Neill) |
| 93 | Kanji and Kana (Spahn and Hadamitzky) |
| 93 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 400 | Kanji in Context (Nishiguchi and Kono) |
| 1280 | Kodansha Compact Kanji Guide |
| 2648 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1351 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1832 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1791 | Les Kanjis dans la tete (Yves Maniette) |
| 19113 | Morohashi |
| 2135 | New Japanese English Character Dictionary (Jack Halpern) |
| 3439 | New Nelson (John Haig) |
| 1775 | Remembering The Kanji (James Heisig) |
| 1913 | Remembering The Kanji, 6th edition (James Heisig) |
| 179 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 600 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 4
274 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 無 【ム】 nothing, naught, nought, nil, zero, un-, non-
- 無意識 【ムイシキ】 unconsciousness, unconscious, involuntary, automatic, mechanical, unintentional, spontaneous, the unconscious
- 皆無 【カイム】 nonexistent, nil, none, nothing (at all), bugger-all
- 虚無 【キョム】 nihility, nothingness
- 無 【ブ】 un-, non-, bad ..., poor ...
- 不気味 【ブキミ】 weird, eerie, ominous, creepy, uncanny, unearthly
Kun reading compounds
- 無い 【ない】 nonexistent, not being (there), unowned, not had, unpossessed, unique, not, impossible, won't happen, not, to not be, to have not
- 【ないといけない】 have to (verb), must (verb), is indispensable, absolutely necessary
- 苦無 【くない】 ninja throwing knives, mediaeval farming tool for digging, prying, etc.
Readings
- Korean:
- mu
Spanish
- nada
- inexistente
- prefijo negativo
- no hay
Portuguese
- Sem valor
- nada
- não sou/ estou
- nihil
- não
French
- néant
- rien
- ne pas
- non
- in-
- négatif
| 2340 | 2001 Kanji |
| 4d8.8 | The Kanji Dictionary |
| 2-2-10 | SKIP code |
| 2-8-4 | SKIP code |
| 8033.1 | Four corner code |
| 1-44-21 | JIS X 0208-1997 kuten code |
| 7121 | Unicode hex code |
Jōyō kanji, taught in junior high
1969 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 暗黒 【アンコク】 darkness
- 暗夜 【アンヤ】 dark night
- 冥暗 【メイアン】 gloom, shade
- 幽暗 【ユウアン】 gloom, darkness, seclusion
Kun reading compounds
- 闇 【やみ】 darkness, the dark, bewilderment, despair, hopelessness, hidden place, secrecy, oblivion, black market, shady trading, underhand transactions, illegal channels
- 闇垢 【やみあか】 alternative account (on social media, etc.), hidden account, sub account
- 暁闇 【あかつきやみ】 moonless dawn
- 五月闇 【さつきやみ】 dark night in the rainy season
- 暗い 【くらい】 dark, gloomy, murky, depressed, dispirited, down in the dumps, dark (mood), dark (in colour), dull, ill-boding, dark (e.g. past), suspicious, unlikely (to succeed), hopeless, unpromising, unfamiliar (with), ignorant (of)
Readings
- Korean:
- am
Spanish
- oscuro
- sombrío
- poco claro
- sin esperanza
- confuso
Portuguese
French
| 1758 | A New Dictionary of Kanji Usage |
| 4969 | Classic Nelson (Andrew Nelson) |
| 1899 | Essential Kanji (P.G. O’Neill) |
| 2709 | Japanese Names (P.G. O’Neill) |
| 349 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 4134 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2846 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 41421 | Morohashi |
| 3332 | New Japanese English Character Dictionary (Jack Halpern) |
| 6414 | New Nelson (John Haig) |
| 2777 | Remembering The Kanji (James Heisig) |
| 1748 | Remembering The Kanji, 6th edition (James Heisig) |
| 8e9.5 | The Kanji Dictionary |
| 3-8-9 | SKIP code |
| 7760.1 | Four corner code |
| 1-16-39 | JIS X 0208-1997 kuten code |
| 95c7 | Unicode hex code |