| 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
2388 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 蓋果 【ガイカ】 pyxidium
- 蓋世 【ガイセイ】 matchless (heroism, spirit, resolve, etc.), peerless, overwhelming, world-dominating
- 鰓蓋 【エラブタ】 gill cover, operculum
- 口蓋 【コウガイ】 palate
- 蓋世 【ガイセイ】 matchless (heroism, spirit, resolve, etc.), peerless, overwhelming, world-dominating
Kun reading compounds
- 蓋 【ふた】 cover, lid, cap
- 蓋開け 【ふたあけ】 opening, beginning, commencement
- ポケ蓋 【ポケふた】 manhole cover decorated with Pokémon creatures
- 臭い物に蓋 【くさいものにふた】 looking the other way, hushing up a problem
- 蓋し 【けだし】 certainly, really, truly, indeed, possibly, maybe, perhaps, probably
- 覆う 【おおう】 to cover, to hide, to conceal, to wrap, to disguise
Readings
- Korean:
- gae, hab
Spanish
Portuguese
French
| 4019 | Classic Nelson (Andrew Nelson) |
| 2193 | Japanese Names (P.G. O’Neill) |
| 1286 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 2933 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2040 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 31652X | Morohashi |
| 2503 | New Japanese English Character Dictionary (Jack Halpern) |
| 5155 | New Nelson (John Haig) |
| 2388 | Remembering The Kanji (James Heisig) |
| 1561 | Remembering The Kanji, 6th edition (James Heisig) |
| 3k10.15 | The Kanji Dictionary |
| 2-3-10 | SKIP code |
| 2-4-10 | SKIP code |
| 4410.7 | Four corner code |
| 1-19-24 | JIS X 0208-1997 kuten code |
| 84cb | Unicode hex code |