W₄A₁T₁E₁R₁S₁H₄E₁D₂S₁

17 points

WATERSHEDS is validvalid

WATERSHED, an area drained by a river system [n]

144,652 of 196,601 in NWL2023·also valid in CSW24

WATERSHED, the area which a river and its tributaries drain [n]

273,810 of 280,887 in CSW24·also valid in NWL2023