| 718 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 812 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 791 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 325 | A New Dictionary of Kanji Usage |
| 4980 | Classic Nelson (Andrew Nelson) |
| 680 | Essential Kanji (P.G. O’Neill) |
| 983 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 374 | Japanese Names (P.G. O’Neill) |
| 513 | Kanji and Kana (Spahn and Hadamitzky) |
| 522 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 781 | Kanji in Context (Nishiguchi and Kono) |
| 725 | Kodansha Compact Kanji Guide |
| 320 | Kodansha Kanji Dictionary (Jack Halpern) |
| 203 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 242 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1311 | Les Kanjis dans la tete (Yves Maniette) |
| 41576 | Morohashi |
| 270 | New Japanese English Character Dictionary (Jack Halpern) |
| 6429 | New Nelson (John Haig) |
| 1302 | Remembering The Kanji (James Heisig) |
| 1399 | Remembering The Kanji, 6th edition (James Heisig) |
| 326 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 674 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 5
JLPT level N2
331 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 防衛施設庁 【ボウエイシセツチョウ】 (Japanese) Defense Facilities Administration Agency (Defence)
- 防衛 【ボウエイ】 defense, defence, protection
- 砂防 【サボウ】 erosion control
- 攻防 【コウボウ】 offense and defense, offence and defence
Kun reading compounds
- 防ぐ 【ふせぐ】 to defend against, to protect against, to prevent, to avert, to avoid
Readings
- Japanese names:
- あた、 う、 ほう
- Korean:
- bang
Spanish
- defender
- proteger
- aguantar
- prevenir
- presa
- banco
Portuguese
- desligar
- defender
- proteger
- resistir
French
- prévenir (un danger)
- défendre
- protéger
- résister
| 3645 | 2001 Kanji |
| 2d4.1 | The Kanji Dictionary |
| 1-3-4 | SKIP code |
| 1-2-4 | SKIP code |
| 7022.7 | Four corner code |
| 1-43-41 | JIS X 0208-1997 kuten code |
| 9632 | Unicode hex code |
Jōyō kanji, taught in junior high
JLPT level N1
1225 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 腐敗 【フハイ】 decomposition, putrefaction, putrescence, spoilage, corruption, degeneracy, decay, depravity
- 腐心 【フシン】 taking great pains (to do), making every effort, having a lot of trouble (doing), racking one's brains
- 防腐 【ボウフ】 preservation from decay, prevention of putrefaction, embalmment, antisepsis
- 高野豆腐 【コウヤドウフ】 freeze-dried tofu
Kun reading compounds
- 腐る 【くさる】 to rot, to go bad, to decay, to spoil, to fester, to decompose, to turn sour (e.g. milk), to corrode, to weather, to crumble, to become useless, to blunt, to weaken (from lack of practice), to become depraved, to be degenerate, to be morally bankrupt, to be corrupt, to be depressed, to be dispirited, to feel discouraged, to feel down, to have the audacity to, to be bastard enough to, to lose a bet, to be drenched, to become sopping wet
- 腐るほど 【くさるほど】 more than one can possibly use, countless (e.g. examples), (money) to burn, rolling in (cash)
- 腐れる 【くされる】 to spoil, to rot, to corrode
- 腐れ 【くされ】 rotting, spoiling, decaying, corroding, rotten, worthless, paltry, contemptible
- 腐れ縁 【くされえん】 (undesirable but) inseparable relationship
- 腐らす 【くさらす】 to let spoil, to leave to rot, to cause to rot, to corrode, to discourage, to dishearten
- 腐す 【くさす】 to speak ill of
Readings
- Korean:
- bu
Spanish
- putrefacción
- descomposición
- agrio
- pudrirse
- descomponerse
- corromperse
- agriarse
Portuguese
- prodre
- apodrecer
- azedar
French
- pourrir
- putréfier
- aigre
| 1755 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1400 | A New Dictionary of Kanji Usage |
| 1532 | Classic Nelson (Andrew Nelson) |
| 1378 | Essential Kanji (P.G. O’Neill) |
| 1679 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1245 | Kanji and Kana (Spahn and Hadamitzky) |
| 1312 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1730 | Kanji in Context (Nishiguchi and Kono) |
| 1011 | Kodansha Compact Kanji Guide |
| 3921 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2022 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2729 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1032 | Les Kanjis dans la tete (Yves Maniette) |
| 29625 | Morohashi |
| 3162 | New Japanese English Character Dictionary (Jack Halpern) |
| 4835 | New Nelson (John Haig) |
| 1023 | Remembering The Kanji (James Heisig) |
| 1099 | Remembering The Kanji, 6th edition (James Heisig) |
| 1727 | Tuttle Kanji Cards (Alexander Kask) |
| 553 | 2001 Kanji |
| 3q11.3 | The Kanji Dictionary |
| 3-3-11 | SKIP code |
| 0022.7 | Four corner code |
| 1-41-69 | JIS X 0208-1997 kuten code |
| 8150 | Unicode hex code |