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澄む， 清む， すむ
1. to become clear (water, air, etc.), to become transparent
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
（水，空气）清亮，透明
が
1. indicates the subject of a sentence
2. indicates possession
3. but, however, (and) yet, though, although, while
4. and
5. used after an introductory remark or explanation
6. regardless of ..., whether ... (or not), no matter ...
7. indicates a des...
tbd