| 500 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 600 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 572 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 134 | A New Dictionary of Kanji Usage |
| 17 | Classic Nelson (Andrew Nelson) |
| 130 | Essential Kanji (P.G. O’Neill) |
| 104 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 94 | Japanese Names (P.G. O’Neill) |
| 3.18 | Japanese for Busy People |
| 94 | Kanji and Kana (Spahn and Hadamitzky) |
| 94 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 422 | Kanji in Context (Nishiguchi and Kono) |
| 10 | Kodansha Compact Kanji Guide |
| 4242 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2141 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2890 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1225 | Les Kanjis dans la tete (Yves Maniette) |
| 19 | Morohashi |
| 3434 | New Japanese English Character Dictionary (Jack Halpern) |
| 13 | New Nelson (John Haig) |
| 1217 | Remembering The Kanji (James Heisig) |
| 1302 | Remembering The Kanji, 6th edition (James Heisig) |
| 103 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 444 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 4
JLPT level N4
101 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 不 【フ】 un-, non-, negative prefix
- 不安 【フアン】 anxiety, uneasiness, worry, apprehension, fear, insecurity, suspense
- 意味不 【イミフ】 of uncertain meaning, ambiguous, cryptic, nonsensical, incomprehensible, perplexing
- 社不 【シャフ】 person unfit for society, misfit
- 無 【ブ】 un-, non-, bad ..., poor ...
- 不気味 【ブキミ】 weird, eerie, ominous, creepy, uncanny, unearthly
Readings
- Korean:
- bu, bul
Spanish
- prefijo negativo: in-
- des-
Portuguese
- Prefixo negativo
- negativa
- não
- feia
- ruim
- deselegante
French
- négation
- non
- mauvais
- laid
- maladroit
| 3154 | 2001 Kanji |
| 0a4.2 | The Kanji Dictionary |
| 4-4-1 | SKIP code |
| 3-3-1 | SKIP code |
| 3-2-2 | SKIP code |
| 1090.0 | Four corner code |
| 1-41-52 | JIS X 0208-1997 kuten code |
| 4e0d | Unicode hex code |
Stroke order
On reading compounds
- 銹病 【サビビョウ】 (plant) rust, rust fungus
- 銹菌 【サビキン】 rust (fungus)
- 銹病 【サビビョウ】 (plant) rust, rust fungus
- 銹菌 【サビキン】 rust (fungus)
- 防銹 【ボウシュウ】 rustproofing
Kun reading compounds
- 錆 【さび】 rust
- 銹菌 【さびきん】 rust (fungus)
Readings
- Korean:
- su
Spanish
Portuguese
French
| 4857 | Classic Nelson (Andrew Nelson) |
| 40426 | Morohashi |
| 6271 | New Nelson (John Haig) |
| 8a7.6 | The Kanji Dictionary |
| 1-8-7 | SKIP code |
| 8212.7 | Four corner code |
| 1-78-88 | JIS X 0208-1997 kuten code |
| 92b9 | Unicode hex code |
Jōyō kanji, taught in grade 6
JLPT level N1
1246 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 鋼 【ハガネ】 steel, sword steel, sword
- 鋼材 【コウザイ】 steel material
- 粗鋼 【ソコウ】 crude steel
- 製鋼 【セイコウ】 steel manufacture
Kun reading compounds
- 鋼 【はがね】 steel, sword steel, sword
- 鋼色 【はがねいろ】 steel blue
- 玉鋼 【たまはがね】 traditional Japanese steel made from iron sand (esp. for use in swords)
Readings
- Korean:
- gang
Spanish
- acero
Portuguese
- aço
French
- acier
| 874 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 864 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 867 | A New Dictionary of Kanji Usage |
| 4883 | Classic Nelson (Andrew Nelson) |
| 1509 | Essential Kanji (P.G. O’Neill) |
| 1851 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1608 | Kanji and Kana (Spahn and Hadamitzky) |
| 1715 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1337 | Kanji in Context (Nishiguchi and Kono) |
| 1825 | Kodansha Compact Kanji Guide |
| 2183 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1145 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1551 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1981 | Les Kanjis dans la tete (Yves Maniette) |
| 40509 | Morohashi |
| 1740 | New Japanese English Character Dictionary (Jack Halpern) |
| 6302 | New Nelson (John Haig) |
| 1962 | Remembering The Kanji (James Heisig) |
| 2113 | Remembering The Kanji, 6th edition (James Heisig) |
| 992 | Tuttle Kanji Cards (Alexander Kask) |
| 2853 | 2001 Kanji |
| 8a8.20 | The Kanji Dictionary |
| 1-8-8 | SKIP code |
| 8712.0 | Four corner code |
| 1-25-61 | JIS X 0208-1997 kuten code |
| 92fc | Unicode hex code |