American Sign Language (ASL) is a natural language that serves as the predominant sign language of Deaf communities in the United States of America and most of Anglophone Canada. ASL is a complete and organized visual language that is expressed by employing both manual and nonmanual features. Besides North America, dialects of ASL and ASL-based creoles are used in many countries around the world, including much of West Africa and parts of Southeast Asia. ASL is also widely learned as a second language, serving as a lingua franca. ASL is most closely related to French Sign Language (LSF). It has been proposed that ASL is a creole language of LSF, although ASL shows features atypical of creole languages, such as agglutinative morphology.
Fingerspelling is the representation of the letters of a writing system, and sometimes numeral systems, using only the hands. These manual alphabets have often been used in deaf education and have subsequently been adopted as a distinct part of a number of sign languages. There are about forty manual alphabets around the world. Historically, manual alphabets have had a number of additional applications—including use as ciphers, as mnemonics and in silent religious settings.
Sutton SignWriting, or simply SignWriting, is a system of writing sign languages. It is highly featural and visually iconic, both in the shapes of the characters, which are abstract pictures of the hands, face, and body, and in their spatial arrangement on the page, which does not follow a sequential order like the letters that make up written English words. It was developed in 1974 by Valerie Sutton, a dancer who had, two years earlier, developed DanceWriting. Some newer standardized forms are known as the International Sign Writing Alphabet (ISWA).
The American Manual Alphabet (AMA) is a manual alphabet that augments the vocabulary of American Sign Language.
Several manual alphabets in use around the world employ two hands to represent some or all of the letters of an alphabet, usually as a part of a deaf sign language. Two-handed alphabets are less widespread than one-handed manual alphabets. They may be used to represent the Latin alphabet or the Cyrillic alphabet.
Stokoe notation is the first phonemic script used for sign languages. It was created by William Stokoe for American Sign Language (ASL), with Latin letters and numerals used for the shapes they have in fingerspelling, and iconic glyphs to transcribe the position, movement, and orientation of the hands. It was first published as the organizing principle of Sign Language Structure: An Outline of the Visual Communication Systems of the American Deaf (1960), and later also used in A Dictionary of American Sign Language on Linguistic Principles, by Stokoe, Casterline, and Croneberg (1965). In the 1965 dictionary, signs are themselves arranged alphabetically, according to their Stokoe transcription, rather than being ordered by their English glosses as in other sign-language dictionaries. This made it the only ASL dictionary where the reader could look up a sign without first knowing how to translate it into English. The Stokoe notation was later adapted to British Sign Language (BSL) in Kyle et al. (1985) and to Australian Aboriginal sign languages in Kendon (1988). In each case the researchers modified the alphabet to accommodate phonemes not found in ASL.
American Sign Language (ASL), the sign language used by the deaf community throughout most of North America, has a rich vocabulary of terms, which include profanity. Within deaf culture, there is a distinction drawn between signs used to curse versus signs that are used to describe sexual acts. In usage, signs to describe detailed sexual behavior are highly taboo due to their graphic nature. As for the signs themselves, some signs do overlap, but they may also vary according to usage. For example, the sign for "shit" when used to curse is different from the sign for "shit" when used to describe the bodily function or the fecal matter.
The grammar of American Sign Language (ASL) has rules just like any other sign language or spoken language. ASL grammar studies date back to William Stokoe in the 1960s. This sign language consists of parameters that determine many other grammar rules. Typical word structure in ASL conforms to the SVO/OSV and topic-comment form, supplemented by a noun-adjective order and time-sequenced ordering of clauses. ASL has large CP and DP syntax systems, and also doesn't contain many conjunctions like some other languages do.
The French manual alphabet is an alphabet used for French Sign Language (LSF), both to distinguish LSF words and to sign French words in LSF.
The Hamburg Sign Language Notation System, or HamNoSys, is a transcription system for all sign languages, with a direct correspondence between symbols and gesture aspects, such as hand location, shape and movement. It was developed in 1985 at the University of Hamburg, Germany. As of 2020, it is in its fourth revision.
ASL-phabet, or the ASL Alphabet, is a writing system developed by Samuel Supalla for American Sign Language (ASL). It is based on a system called SignFont, which Supalla modified and streamlined for use in an educational setting with Deaf children.
Nepalese Sign Language or Nepali Sign Language is the main sign language of Nepal. It is a partially standardized language based informally on the variety used in Kathmandu, with some input from varieties from Pokhara and elsewhere. As an indigenous sign language, it is not related to oral Nepali. The Nepali Constitution of 2015 specifically mentions the right to have education in Sign Language for the deaf. Likewise, the newly passed Disability Rights Act of 2072 BS defined language to include "spoken and sign languages and other forms of speechless language." in practice it is recognized by the Ministry of Education and the Ministry of Women, Children and Social Welfare, and is used in all schools for the deaf. In addition, there is legislation underway in Nepal which, in line with the UN Convention on the Rights of Persons with Disabilities (UNCRPD) which Nepal has ratified, should give Nepalese Sign Language equal status with the oral languages of the country.
In sign language, an initialized sign is one that is produced with a handshape(s) that corresponds to the fingerspelling of its equivalent in the locally dominant oral language, based on the respective manual alphabet representing that oral language's orthography. The handshape(s) of these signs then represent the initial letter of their written equivalent(s). In some cases, this is due to the local oral language having more than one equivalent to a basic sign. For example, in ASL, the signs for "class" and "family" are the same, except that "class" is signed with a 'C' handshape, and "family" with an 'F' handshape. In other cases initialization is required for disambiguation, though the signs are not semantically related. For example, in ASL, "water" it signed with a 'W' handshape touching the mouth, while "dentist" is similar apart from using a 'D' handshape. In other cases initialization is not used for disambiguation; the ASL sign for "elevator", for example, is an 'E' handshape moving up and down along the upright index finger of the other hand.
Dritok is a constructed language (conlang) created by Donald Boozer in 2007. Boozer was Secretary (2012–2015) and Librarian (2009–2013) of the Language Creation Society.
In sign languages, location, or tab, refers to specific places that the hands occupy as they are used to form signs. In Stokoe terminology it is known as the TAB, an abbreviation of tabula. Location is one of five components, or parameters, of a sign, along with handshape, orientation, movement, and nonmanual features. A particular specification of a location, such as the chest or the temple of the head, can be considered a phoneme. Different sign languages can make use of different locations. In other words, different sign languages can have different inventories of location phonemes.
In sign languages, movement, or sig, refers to the distinctive hand actions that form words. In William Stokoe's terminology, it is the SIG, an abbreviation of signation. Movement is one of five components of a sign—with handshape, orientation, location, and nonmanual features. Different sign languages use different types of movement. Some treatments distinguish movement and hold—signs, or parts of signs, that involve motion vs. those that hold the hands still.
Sign languages such as American Sign Language (ASL) are characterized by phonological processes analogous to, yet dissimilar from, those of oral languages. Although there is a qualitative difference from oral languages in that sign-language phonemes are not based on sound, and are spatial in addition to being temporal, they fulfill the same role as phonemes in oral languages.
Cuban Sign Language, is the language used by the Deaf community in Cuba. There are approximately 19,000 users of the language. Cuban Sign Language is an important part of the culture of the Deaf community in Cuba.
ASLwrite is a writing system that developed from si5s. It was created to be an open-source, continuously developing orthography for American Sign Language (ASL), trying to capture the nuances of ASL's features. ASLwrite is only used by a handful of people, primarily revolving around discussions happening on Facebook and, previously, Google Groups. ASLwrite has been used for comic strips and posters.
An Esperanto manual alphabet is included as part of the Signuno project for manually coded Esperanto. Signuno is based on the signs of International Sign, but adapted to the grammatical system of Esperanto.
