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