Filipino Sign Language (FSL) or Philippine Sign Language (Filipino: Wikang pasenyas ng mga Pilipino), is a sign language originating in the Philippines. Like other sign languages, FSL is a unique language with its own grammar, syntax and morphology; it is neither based on nor resembles Filipino or English. Some researchers consider the indigenous signs of FSL to be at risk of being lost due to the increasing influence of foreign sign languages such as ASL.