| 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 N2
908 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 汚水 【オスイ】 filthy water, sewage
- 汚職 【オショク】 corruption
- 防汚 【ボウオ】 antifouling, stain resistance, stain-proofing, anti-soiling
- 貪汚 【タンオ】 greed, corruption
Kun reading compounds
- 汚す 【よごす】 to pollute, to contaminate, to soil, to make dirty, to stain, to disgrace, to dishonour, to dishonor, to defile
- 汚れる 【けがれる】 to be violated, to be corrupted, to be polluted, to be stained
- 汚らわしい 【けがらわしい】 filthy, unfair, dirty, untouchable, disgusting, nasty, foul, odious, repulsive
- 汚す 【よごす】 to pollute, to contaminate, to soil, to make dirty, to stain, to disgrace, to dishonour, to dishonor, to defile
- 汚れる 【よごれる】 to get dirty, to become dirty, to become sullied, to become corrupted, to lose one's chastity
- 汚い 【きたない】 dirty, filthy, foul, unclean, disordered, messy, untidy, poor (e.g. handwriting), indecent (language, etc.), dirty, vulgar, coarse, dastardly, mean, base, underhanded, stingy, greedy
- 汚い戦争 【きたないせんそう】 Dirty War (period of state terrorism in Argentina; 1976-1983)
Readings
- Korean:
- o
Spanish
- sucio
- manchado
- manchar
- deshonrar
- ensuciar
- difamar
- obsceno
- ensuciarse
Portuguese
- sujo
- poluir
- desgraça
- estupro
- sujar
French
- sale
- polluer
- disgrâce
- profaner
- souiller
| 1031 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1246 | A New Dictionary of Kanji Usage |
| 2494 | Classic Nelson (Andrew Nelson) |
| 1531 | Essential Kanji (P.G. O’Neill) |
| 666 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 693 | Kanji and Kana (Spahn and Hadamitzky) |
| 706 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 907 | Kanji in Context (Nishiguchi and Kono) |
| 1158 | Kodansha Compact Kanji Guide |
| 258 | Kodansha Kanji Dictionary (Jack Halpern) |
| 163 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 196 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1253 | Les Kanjis dans la tete (Yves Maniette) |
| 17133 | Morohashi |
| 222 | New Japanese English Character Dictionary (Jack Halpern) |
| 3047 | New Nelson (John Haig) |
| 1245 | Remembering The Kanji (James Heisig) |
| 1334 | Remembering The Kanji, 6th edition (James Heisig) |
| 1083 | Tuttle Kanji Cards (Alexander Kask) |
| 352 | 2001 Kanji |
| 3a3.5 | The Kanji Dictionary |
| 1-3-3 | SKIP code |
| 1-3-4 | SKIP code |
| 3112.7 | Four corner code |
| 1-17-88 | JIS X 0208-1997 kuten code |
| 6c5a | Unicode hex code |