The variety spoken in The Gambia and Senegal borders on a pitch accent due to its proximity with non-tonal neighboring languages like Wolof.
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: In Senegal and Gambia, Mandinka is approaching a system of pitch accent under the influence of local non-tonal languages such as Wolof, Serer, and Jola.
All of these preserve the typical West African terraced downstep in tonality that is only lightly alluded to in the Western Mandinka dialects spoken in much of Gambia and Senegal.
Word-initial mb, nd, ndy, ng occur but are not particularly common; it is not clear whether they should be considered syllabic nasals or additional consonants.
Consonants may be geminated in the middles of words (at least /pp, tʃtʃ, dʒdʒ, kk, ll, mm, nn, ɲɲ/).
In addition, the pan-Manding writing system, the N'Ko script, invented in 1949, is often used in Guinea-Bissau, north east Guinea, and in bordering communities in Ivory Coast and Mali.