Home › Words › D › diphthongoiddiphthongoiddiphthongoid means A vowel that is midway between a monophthong and a diphthong.EtymologyFrom diphthong + -oid.nounA vowel that is midway between a monophthong and a diphthong.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.diphthong 78% match — A complex vowel sound that begins with the sound of one vowel and ends with the sound of another vowel, in the same syllable. vs diphthongoid →diphthongic 76% match — Of the nature of diphthong; diphthongal. vs diphthongoid →diphthongy 76% match — Having the quality of a diphthong. vs diphthongoid →diphthongal 76% match — Pertaining to or characterized by a diphthong. vs diphthongoid →diphthongally 75% match — By means of a diphthong. vs diphthongoid →diphthongization 73% match — The process by which a single vowel sound (monophthong) shifts to a two-vowel vocalization (diphthong). vs diphthongoid →bivocal 70% match — A diphthong vs diphthongoid →diphthongality 69% match — The quality of being diphthongal. vs diphthongoid →