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tide; current
sea water
thin soup of fish or shellfish boiled in sea water
dish of unboned whitefish boiled in salted water
夕方になると汐が満ちて岩場が水に沈んだ。
In the evening, the tide came in and the rocky shore sank beneath the water.
汐の流れに乗って小舟が沖へ出ていった。
A small boat drifted out to sea, carried by the tidal current.
この港は汐の変化が激しいため注意が必要だ。
Caution is needed at this port because the tidal changes are severe.