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