tsu
Also: Iimucu, Luhtu, Tapangu, Tfuya, Duhtu, Iimutsu, Tfuea, Cou, Namakaban, Niitaka, Tibola, Tibolah, Tibolak, Tibolal, Tso, Tsoo, Tsu-U, Tsu-Wo, Tsuou, Tzo