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Pakpak, or Batak Dairi, is an Austronesian language of Sumatra. It is spoken in Dairi Regency, Pakpak Bharat Regency, Parlilitan district of 
Humbang Hasundutan Regency
Humbang Hasundutan Regency is a regency in North Sumatra province of Indonesia. It includes part of the southwest shore of Lake Toba of North Sumatra, Indonesia. The regency covers an area of 2,502.71 km2, and it had a population of 171,687 ...
, Manduamas district of Central Tapanuli Regency, and Subulussalam and Aceh Singkil Regency.
Phonology
Consonants
* A word-final /k/ can also be heard as a glottal stop .Vowels
* Vowels /i, u, e, o/ can have shortened allophones of , ,References
Further reading
* * * * Batak languages Languages of Indonesia Languages of Aceh {{au-lang-stub