| 1156 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1588 | A New Dictionary of Kanji Usage |
| 4109 | Classic Nelson (Andrew Nelson) |
| 1484 | Essential Kanji (P.G. O’Neill) |
| 1712 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1519 | Japanese Names (P.G. O’Neill) |
| 1572 | Kanji and Kana (Spahn and Hadamitzky) |
| 1678 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1741 | Kanji in Context (Nishiguchi and Kono) |
| 1601 | Kodansha Compact Kanji Guide |
| 4017 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2053 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2778 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 2012 | Les Kanjis dans la tete (Yves Maniette) |
| 32708 | Morohashi |
| 3237 | New Japanese English Character Dictionary (Jack Halpern) |
| 5269 | New Nelson (John Haig) |
| 1993 | Remembering The Kanji (James Heisig) |
| 2148 | Remembering The Kanji, 6th edition (James Heisig) |
| 1481 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in junior high
JLPT level N1
1454 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 虚 【キョ】 unpreparedness, falsehood, Chinese "Emptiness" constellation (one of the 28 mansions)
- 虚偽 【キョギ】 falsehood, untruth, lie, misinformation, fallacy
- 盈虚 【エイキョ】 waxing and waning (of the moon), phase, rising and falling (of fortune)
- 太虚 【タイキョ】 the sky, the heavens, Great Void (in ancient Chinese philosophy, the primordial substance that gives rise to qi)
- 虚偽 【キョギ】 falsehood, untruth, lie, misinformation, fallacy
- 虚空 【コクウ】 empty space, empty sky
Kun reading compounds
- 虚しい 【むなしい】 empty, void, vacant, vain, fruitless, futile, ineffective, lifeless
- 虚ろ 【うつろ】 cavity, hollow, void, hollow (voice, smile, etc.), blank (eyes, look, etc.), vacant (expression, stare, etc.), empty (words, heart, etc.)
- 虚舟 【うつろぶね】 unidentified craft said to have washed ashore in Ibaraki Prefecture during the Edo period (sometimes alleged to have been a UFO)
Readings
- Korean:
- heo
Spanish
- vacío
- vano
- hueco
Portuguese
- vazio
- vacuidade
- despreparo
- abertura
- fissura
- falsidade
French
- vide
- impréparation
- craquelure
- fissure
- contre-vérité
| 1274 | 2001 Kanji |
| 2m9.1 | The Kanji Dictionary |
| 3-4-7 | SKIP code |
| 3-6-5 | SKIP code |
| 2121.2 | Four corner code |
| 1-21-85 | JIS X 0208-1997 kuten code |
| 865a | Unicode hex code |
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
| 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) |
| 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 |