1
to become clear (water, air, etc.);to become transparent
水が底まで澄んでいる。
The water is clear to the bottom.
2
to resonate clearly (e.g. voice)
3
to become serene;to become tranquil;to be free of worries
4
to pronounce as an unvoiced sound
See also:
清音 (せいおん)
Other forms
清む 【すむ】