This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "Voiceless bilabially post-trilled dental stop" – news · newspapers · books · scholar · JSTOR (March 2020) (Learn how and when to remove this message)
Voiceless bilabially post-trilled dental stop

The voiceless bilabially post-trilled dental stop is a very rare consonantal sound reported to occur in a few spoken languages: the Oro Win and Wariʼ languages in South America and Sangtam in Northeast India. The symbol in the International Phonetic Alphabet that represents this sound is t̪ʙ̥, and the equivalent X-SAMPA symbol is t_dB\_0.


Features of the voiceless bilabially post-trilled dental stop:


Language Word IPA Meaning Notes
Oro Win [example needed]
Pirahã [example needed]
Sangtam[1] [t͡ʙ̥ʰʌ] 'plate' Contrasts /t͡ʙ̥, t͡ʙ̥ʰ/.
Wari' [t͡ʙ̥ot͡ʙ̥o] 'to be pleasant' Forms a minimal pair with [toto], which means 'to paint'


  1. ^ Coupe (2015) "Prestopped bilabial trills in Sangtam", Proceedings of the 18th International Congress of Phonetic Sciences, Glasgow, 10–14 August 2015