Mandinka language
The Mandinka language (Mandi'nka kango), or Mandingo, is a Mandé language spoken by the Mandinka people of the Casamance region of Senegal, the Gambia, and northern Guinea-Bissau. It is the principal language of the Gambia.
Mandinka belongs to the Manding branch of Mandé, and is thus similar to Bambara and Maninka/Malinké.
In a majority of areas, it is tonal language with two tones: low and high, although the particular variety spoken in the Gambia and Senegal borders on a pitch accent due to its proximity with non-tonal neighboring languages like Wolof.
Phonology
Mandinka is here represented by the variety spoken in Casamance. There is little dialectical diversity.
Mandinka has two tones, high and low. Unmodified nouns are either high tone on all syllables or low tone on all syllables. The definite suffix -o take a low tone on high-tone nouns and a falling tone on low-tone nouns. It also assimilates any preceding short vowel, resulting in a long /oo/ with either low or falling tone. It shortens a preceding long high vowel (ii > io, uu > uo; ee optionally > either eo or ee) or assimilates itself (aa remains aa) leaving only its tone: