悪水[akusui] undrinkable water
井戸水[idomizu] well water
一衣帯水[ichiitaisui] (being separated only by a) narrow strip of water
一水[issui] current (of water)
溢水[issui] inundation

飲水量[insuiryou] amount of drinking
飲料水[inryousui] drinking water
烏の行水[karasunogyouzui] quick bath
雲水[unsui] itinerant priest
塩化水素[enkasuiso] hydrogen chloride

汚ない[kitanai] dirty
汚いやり方[kitanaiyarikata] dirty trick
汚す[yogosu] to pollute
汚らわしい[kegarawashii] filthy
汚れ[kegare] uncleanness

汚れる[kegareru] to be violated
汚れる[yogoreru] to get dirty
汚職[oshoku] corruption
汚辱[ojoku] disgrace
汚水[osui] filthy water