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.
The letters are all to be signed upright with a straight wrist, and palm outward, so for example the G resembles D, as in the French manual alphabet, although the D fingers are more open (like O) and the index finger is shorter. None of the letters involve motion (again like the static wrist this is to allow greater accessibility for certain disabled groups), so J and Z are distinct from other alphabets: J is like a Cyrillic J; and Z has the form of an ASL 3 (which appears to be unique to Signuno, and may have its origins in Cyrillic letter З (z) being similar in shape to the number 3).
Other differences from the American manual alphabet are: [1]
The diacritic letters Ĉ, Ĝ, Ĥ, Ĵ, Ŝ, Ŭ are sometimes derived from their base letters:
Unlike in Gestuno, Signuno digits are all made on a single hand. For 1 to 4, the fingers are extended from the index to the pinkie. Thus Signuno '3' looks like an ASL '6'. 5 is the international (and ASL) '5' hand. For 6 to 9, the fingers are extended from the pinkie to the thumb, skipping the middle finger so that 8 is the ASL '8'. Apart from facing inwards or (in the case of 0 and 10) to the side rather than outward as the letters do, they thus have the shapes of the Signuno letters O (0), G (1), V (2), W (3), [ASL 4] (4), Ŝ [ASL 5] (5), I (6), J (7), Q [ASL 8] (8), [ASL handshape for 'feel'] (9).
Powers of ten have the palm pointing to the side. 10 is signed as the Roman numeral X. As in ASL, 100 and 1000 are signed as the Roman numerals C and M.
For hours and months, there are additional sign for 11 and 12, which have the shapes of the letters Ĝ (11) and L (12) but turned so the palm faces the signer.
When working in hexadecimal, the pattern can be extended to 13 and 14 (i.e., 13 in hex is a turned Z hand), while 15 (hexadecimal 'F') is a turned F hand. [2]
Images and precise definitions for the letters and number can be found in the Signuno documentation. [3]
D, or d, is the fourth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is dee, plural dees.
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.
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The Japanese Sign Language syllabary is a system of manual kana used as part of Japanese Sign Language (JSL). It is a signary of 45 signs and 4 diacritics representing the phonetic syllables of the Japanese language. Signs are distinguished both in the direction they point, and in whether the palm faces the viewer or the signer. For example, the manual syllables na, ni, ha are all made with the first two fingers of the hand extended straight, but for na the fingers point down, for ni across the body, and for ha toward the viewer. The signs for te and ho are both an open flat hand, but in te the palm faces the viewer, and in ho it faces away.
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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.
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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.
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