S₁U₁B₃B₃A₁S₁I₁N₁S₁

13 points

SUBBASINS is validvalid

SUBBASIN, a section of an area drained by a river [n]

115,528 of 196,601 in NWL2023·also valid in CSW24

SUBBASIN, a section of an area drained by a river [n]

237,372 of 280,887 in CSW24·also valid in NWL2023