Tiss'shar was the native language of the reptilian Tiss'shar species of the planet Tiss'sharl. The Tiss'shar language was mainly formed of hisses, shrieks, and lisping vocalizations. It had a violent-looking calligraphy of curves and sharp lines. Most Tiss'shar were fluent in both Tiss'shar and Basic, although they tended to be only literate in their own language.