A sign language commonly used in Sweden.

A sign language, now extinct, which developed on Martha's Vineyard (an island in Massachusetts).

A sign language used in South Africa.

A sign language used in Yucatán, Mexico.

Maritime Sign Language

A sign language used in Hawaii. The language is named after the Hawaiian Pidgin spoken language and is not itself a pidgin.

The primary sign language of Liechtenstein and German-speaking areas of Switzerland.

Swiss-German Sign Language

Alternative form of Swiss-German Sign Language

(algebra, mnemonic) An acronym to help remember that when a value is moved to the opposite side of the equals sign, then the operator is changed also.