- 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 
- 豆腐【とうふ】 - tofu, bean curd, beancurd 
- 腐敗【ふはい】 - decomposition, putrefaction, putrescence, spoilage, corruption, degeneracy, decay, depravity 
- 陳腐【ちんぷ】 - stale, hackneyed, cliched 
- 腐食【ふしょく】 - corrosion, etching, erosion, rot, decay, rust, saprophagy 
- 腐心【ふしん】 - taking great pains (to do), making every effort, having a lot of trouble (doing), racking one's brains 
- 防腐【ぼうふ】 - preservation from decay, prevention of putrefaction, embalmment, antisepsis 
- 腐り【くさり】 - rottenness, decay, corruption 
- 腐葉土【ふようど】 - humus, leaf mold, leaf mould, mulch 
- 持ち腐れ【もちぐされ】 - unused possession 
- 腐臭【ふしゅう】 - smell of something rotten, rotten smell 
- 高野豆腐【こうやどうふ】 - freeze-dried tofu