S₁Y₄N₁C₃L₁I₁N₁E₁S₁

14 points

SYNCLINES is validvalid

SYNCLINE, a geological fold that slopes upward in opposite directions [n]

116,139 of 196,601 in NWL2023·also valid in CSW24

SYNCLINE, a type of rock formation [n]

243,063 of 280,887 in CSW24·also valid in NWL2023