allophone alveolar apico-alveolar apico-dental articulation aspiration assimilation bilabial cacuminal cerebral check consonant continuant dental diphthong 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 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 vowel