Saneyo Dictionary is a trilingual (Sanenyo-English-Hindi) multiscriptal, interactive, semi-pictorial dictionary of Sanenyo, an Austroasiatic language of the Mon-Khmer group, spoken in Chowra and Teressa of the Andaman and Nicobar group of islands in the Bay of Bengal. It has been declared "critically endangered" by UNESCO. The data is full of ethnographic information.