The voiceless palato-alveolar fricative or domed postalveolar fricative (IPA[ʃ]) is a type of consonantal sound, used in some spokenlanguages.
The sound occurs in many languages and, as in English, Italian and French, where it may have simultaneous lip rounding ([ʃʷ]), although this is rarely indicated.
Its manner of articulation is sibilantfricative, which means it is produced by directing air flow through a groove in the tongue at the place of articulation and directing it over the sharp edge of the teeth, causing high-frequency turbulence.
Cruz-Ferreira, Madalena (1995), "European Portuguese", Journal of the International Phonetic Association25 (2): 90-94
Rogers, Derek & Luciana d'Arcangeli (2004), "Italian", Journal of the International Phonetic Association34 (1): 117-121
Shosted, Ryan K. & Chikovani Vakhtang (2006), "Standard Georgian", Journal of the International Phonetic Association36 (2): 255-264
Thelwall, Robin (1990), "Illustrations of the IPA: Arabic", Journal of the International Phonetic Association20 (2): 37-41
Martínez-Celdrán, Eugenio; Ana Ma. Fernández-Planas & Josefina Carrera-Sabaté (2003), "Castilian Spanish", Journal of the International Phonetic Association33 (2): 255-259
This table contains phonetic information in IPA, which may not display correctly in some browsers. [Help]
Where symbols appear in pairs, the one to the right represents a voiced consonant. Shaded areas denote pulmonic articulations judged to be impossible.