Tide
Tidal Current
noun
ちょうりゅう
潮 (しお) Tide, Current
潮流 (ちょうりゅう) Tide, Tidal Current
風潮 (ふうちょう) Tide, Current, Trend
干潮 (かんちょう、not on WK) Low Tide
満潮 (まんちょう) High Tide, Full Tide
Mrs. Chou ちょう and Ryu りゅう fought until the Tidal Current swept them away.