D₂I₁P₃H₄T₁H₄O₁N₁G₂I₁S₁I₁N₁G₂

25 points

DIPHTHONGISING is validvalid

DIPHTHONGISE, to diphthongize [v]

188,046 of 196,601 in NWL2023·also valid in CSW24

DIPHTHONGISE, to make into a diphthong, also DIPHTHONGIZE [v]

65,780 of 280,887 in CSW24·also valid in NWL2023