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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.[1] 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
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