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Dagbani is a Gur language spoken by about 800,000 people in Ghana. Its native speakers are primarily of the Dagomba people, but Dagbani is also widely known as a second language in north-eastern Ghana. Dagbani has three dialects, corresponding to the two principal centers Tamale, Ghana (Western Dagbani), Yendi (Yendi or Eastern Dagbani), and Nanuni, the dialect spoken by the Nanumba ethnic group. Dagbani is a member of the Oti-Volta group of Gur and is mutually intelligible with the Mossi language spoken in Burkina Faso.
Olawsky (1999) has the schwa in place of /ɨ/, unlike other researchers on the language who use the more articulatorily higher /ɨ/. Allophonic variation based on tongue-root advancement is well attested for 4 of these vowels: [i] ~ [ɪ]/[ə], [e] ~ [ɛ], [u] ~ [ʊ] and [o] ~ [ɔ].
Dagbani is a tonal language in which pitch is used to distinguish words, as in gballi[gbál:ɪ́] (High-High) 'grave' vs. gballi[gbál:ɪ̀] (High-Low) 'zana mat'.1 The tone system of Dagbani is characterized by two level tones and downstep (a lowering effect occurring between sequences of the same phonemic tone).
Writing system
Dagbani is written in an extended version of the Latin alphabet, but the literacy rate is only 2–3%. The orthography currently used represents a number of allophonic distinctions; tone is not marked.
Olawsky, Knut J. (1999). Aspects of Dagbani grammar, with special emphasis on phonology and morphology. München: LINCOM Europa.
Olawsky, Knut J. (2003). "What is a word in Dagbani?". in R. M. W. Dixon and Alexandra Y. Aikhenvald. Word: A Cross-Linguistic Typology. Cambridge: Cambridge University Press. pp. 205–226.