The Central Province districts are divided along the traditional boundaries of these dialects, which are Kĩrĩnyaga, Mũrang'a, Nyeri and Kiambu. The Kikuyu from Kîrînyaga are composed of two main sub-dialects – the Ndia and Gichugu who speak the dialects Kĩndia and Gĩgĩcũgũ. The Gicugus and the Ndias do not have the "ch" or "sh" sound, and will use the "s" sound instead, hence the pronunciation of "Gĩcũgũ" as opposed to "Gĩchũgũ".