Moken is often classified in a group with the other Malayo-Polynesian languages of Southeast Asia, Chamic and Malayic, but Adelaar (2005) concludes that they do not belong together.
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The Moken language is a half dozen closely related varieties spoken by the Moken "Sea Gypsies" off the coast of Burma and Thailand.
The Surin Islands host to two small communities of the small ethnic Moken minority, which belongs to the groups known as "Chao Lay" or "Sea Gypsies".