Word Study
diphthong
OXFORD DICTIONARY
diphthong, n.
1 a speech sound in one syllable in which the articulation begins as for one vowel and moves as for another (as in coin, loud, and side).
2 a a digraph representing the sound of a diphthong or single vowel (as in feat). b a compound vowel character; a ligature (as {aelig}).
1 a speech sound in one syllable in which the articulation begins as for one vowel and moves as for another (as in coin, loud, and side).
2 a a digraph representing the sound of a diphthong or single vowel (as in feat). b a compound vowel character; a ligature (as {aelig}).
Derivative
diphthongal adj.
Etymology
F diphtongue f. LL diphthongus f. Gk diphthoggos (as DI-(1), phthoggos voice)
THESAURUS
diphthong
allophone, alveolar, apico-alveolar, apico-dental, articulation, aspiration, assimilation, bilabial, cacuminal, cerebral, check, consonant, continuant, dental, dissimilation, epenthetic vowel, explosive, glide, glottal, glottalization, guttural, labial, labialization, labiodental, labiovelar, laryngeal, lateral, lingual, liquid, manner of articulation, modification, monophthong, morphophoneme, mute, nasal, occlusive, palatal, parasitic vowel, peak, pharyngeal, pharyngealization, phone, phoneme, plosive, prothetic vowel, retroflex, segmental phoneme, semivowel, sonant, sonority, speech sound, stop, surd, syllabic nucleus, syllabic peak, syllable, transition sound, triphthong, velar, vocable, vocalic, vocoid, voice, voiced sound, voiceless sound, voicing, vowelROGET THESAURUS
diphthong
Letter
N letter, character, hieroglyphic, type, capitals, digraph, trigraph, ideogram, ideograph, majuscule, minuscule, majuscule, minuscule, alphabet, ABC, abecedary, christcross-row, consonant, vowel, diphthong, triphthong, mute, liquid, labial, dental, guttural, syllable, monosyllable, dissyllable, polysyllable, affix, suffix, spelling, orthograph, phonography, phonetic spelling, anagrammatism, metagrammatism, cipher, monogram, anagram, doubleacrostic, literal, alphabetical, abecedarian, syllabic, majuscular, minuscular, uncial.For further exploring for "diphthong" in Webster Dictionary Online