Tosi is a higly isolating language with a phonemic inventory of twenty three consonants and five vowels with phonologically distinct lengths. It has active, passive, and antipassive voices, three modes, tense and aspect markers, and a complicated plural construction. Its word order is SVO and the predominant syllabic structure is CVC. Tosi is spoken in five dialects; the described here is called tʃuŋ tosi, or High Tosi. It is spoken by the nobility and upper-middle class as well as by most urban civilians, regardless of class.
Rílin is the language of the Ríli people. It exists in two dialects, Lunauli and Sunuli, the latter being the most prevalent. It is a highly fusional language with some agglutinative aspects, an ergative/absolutive verb system, case markers for nouns, VSO word order, and a complex phonological system. Rílin is also a written language, having a phonetic alphabet which exists in three modes: standard, script, and runic.