Catharese functioned as the verbal and written language utilized by the Cathar. A characteristic of Catharese communication involved the incorporation of growling sounds into certain spoken terms. Typically, Cathars also possessed proficiency in Basic.
Juhani, the Cathar Jedi featured in Knights of the Old Republic, communicates in Basic, although her speech is marked by an accent featuring trilled "r" sounds and the substitution of "v" sounds for "w" sounds.