Voiceless postalveolar affricate

The voiceless palato-alveolar sibilant affricate or voiceless domed postalveolar sibilant affricate is a type of consonantal sound used in some spoken languages. The sound is transcribed in the International Phonetic Alphabet with t͡ʃ, t͜ʃ or (formerly the ligature ʧ). The alternative commonly used in American tradition is č. It is familiar to English speakers as the "ch" sound in "chip".

Voiceless postalveolar affricate
IPA Number103 134
Entity (decimal)t͡ʃ
Unicode (hex)U+0074U+0361U+0283
X-SAMPAtS or t_rS
Audio sample

Historically, this sound often derives from a former voiceless velar stop /k/ (as in English church; also in Gulf Arabic, Slavic languages, Indo-Iranian languages and Romance languages), or a voiceless dental stop /t/ by way of palatalization, especially next to a front vowel (as in English nature; also in Amharic, Portuguese, some accents of Egyptian, etc.).