Diphthong(n.) A coalition or union of two vowel sounds pronounced in one syllable; as, ou in out, oi in noise; -- called a proper diphthong.
Diphthong(n.) A vowel digraph; a union of two vowels in the same syllable, only one of them being sounded; as, ai in rain, eo in people; -- called an improper diphthong.
Diphthong(v. t.) To form or pronounce as a diphthong; diphthongize.
Diphthongal(a.) Relating or belonging to a diphthong; having the nature of a diphthong.
Diphthongalize(v. t.) To make into a diphthong; to pronounce as a diphthong.
Diphthongation(n.) See Diphthongization.
Diphthongic(a.) Of the nature of diphthong; diphthongal.
Diphthongization(n.) The act of changing into a diphthong.
Diphthongize(v. t. & i.) To change into a diphthong, as by affixing another vowel to a simple vowel.
Words within diphthongizes