Sign Language
While “sign language” is a term that is commonly used to refer to American Sign Language (ASL), to assume that ASL is a universal signing language would be incorrect. Like any other language, the sign language of one country can differ from one used in another.
In the U.S., ASL is the natural language of the American Deaf community. ASL conveys concepts by using facial expressions and body movements. From the simple to the complex, the unique grammar and syntax of ASL allows deaf people to communicate their ideas visually.
ASL and other sign languages should not be confused with Signing Exact English (SEE) or other forms of manually coded English. Whereas ASL is a distinct language with its own grammar and syntax, SEE is the visual equivalent of English, signing English words in English order.