Verb (5-dan, る, intransitive)
1. to become muddy; to become cloudy; to become turbid; to become impure (of a liquid or gas)
でも水は濁ったままだわ。But the water is still cloudy.
2. to become dull (of a sound, color, etc.); to become indistinct; to become fuzzy; to become hoarse
さっきまで濁りきっていた思考が、一気にクリアになった。The thinking that had been completely clouded until just now suddenly became clear.
3. to become impure (of one's heart, a society, etc.); to be corrupted; to be polluted
だが、君の心は濁っていない。But your heart is not corrupted.
4. to become voiced (of a consonant); to be pronounced as a voiced sound