Tyap is a regionally important dialect cluster of Plateau languages in Nigeria's Middle Belt, named after its prestige dialect. It is also known by its Hausa exonym as Katab or Kataf. It is also known by the names of its dialectical varieties including Sholyio, Fantswam, Gworok, Takad, "Mabatado" (Tyap 'proper'), Tyeca̱rak and Tyuku (Tuku). In spite of being listed separately from the Tyap cluster, Jju's separation, according to Blench R.M. (2018), seems to be increasingly ethnic rather than a linguistic reality.
