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Bile (Bille) is one of the few Bantu languages of Nigeria. They can be found domiciled in Adamawa state below the Benue river opposite the Mbula-Bwazza who speak a related Bantu zone A (A60+40b) language.
References
Bile at Ethnologue (18th ed., 2015) (subscription required)
Blench, Roger (2019). An Atlas of Nigerian Languages (4th ed.). Cambridge: Kay Williamson Educational Foundation.