D2I1P3H4T1H4O1N1G2I1Z10E1
31 points
DIPHTHONGIZE is validvalid
to make into a diphthong [v DIPHTHONGIZED, DIPHTHONGIZES, DIPHTHONGIZING]
to make into a diphthong, also DIPHTHONGISE [v DIPHTHONGIZED, DIPHTHONGIZING, DIPHTHONGIZES]
to make into a diphthong [v DIPHTHONGIZED, DIPHTHONGIZES, DIPHTHONGIZING]
to make into a diphthong, also DIPHTHONGISE [v DIPHTHONGIZED, DIPHTHONGIZING, DIPHTHONGIZES]