Sangtam language

Native to Nagaland, India
Region East-central Nagaland, Tuensang and Khiphire districts
Ethnicity Sangtam
Native speakers
84,000 (2001 census)[1]
Language codes
ISO 639-3 nsa
Glottolog sang1321[2]

Sangtam, also called Thukumi, Isachanure, or Lophomi, is an Ao language spoken in northeast India. It is spoken in Kiphire District and in the Longkhim-Chare circle in Tuensang district, Nagaland, India.


Ethnologue lists the following dialects of Sangtam.

The standardized dialect of Sangtam is based based on the Tsadanger village speech variety.


Sangtam is unusual in having two stops with bilabial trilled release, /t̪͡ʙ, t̪͡ʙ̥ʰ/.[3]

Sangtam consonants
p pʰt̪ t̪ʰʈʵ ʈʵʰc cʰk kʰʔ
t̪͡ʙ t̪͡ʙ̥ʰt̪s t̪sʰ tʃ tʃʰ
mn ɲŋ
(f v)s (z?) ʃxh

Vowels are /a e i ʌ o u/, tones High, Mid, Low.


  1. Sangtam at Ethnologue (18th ed., 2015)
  2. Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, eds. (2016). "Sangtam Naga". Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.
  3. Coupe (2015) "Prestopped bilabial trills in Sangtam", Proceedings of the 18th International Congress of Phonetic Sciences, Glasgow, 1014 August 2015
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