|Region||contact between sign languages, international contact between Deaf people.|
International Sign (IS) is a pidgin sign language which is used in a variety of different contexts, particularly at international meetings such as the World Federation of the Deaf (WFD) congress, events such as the Deaflympics and the Miss & Mister Deaf World, and informally when travelling and socialising.
Many people consider International Sign as a universal sign language, but this is very hard to establish considering Ethnologue lists 142 different types of sign language.
While the more commonly used term is International Sign, it is sometimes referred to as Gestuno, or International Sign Pidgin and International Gesture (IG). International Sign is a term used by the World Federation of the Deaf and other international organisations.
Deaf people in the Western and Middle Eastern world have gathered together using sign language for 2,000 years. When Deaf people from different sign language backgrounds get together, a contact variety of sign language arises from this contact, whether it is in an informal personal context or in a formal international context. Deaf people have therefore used a kind of auxiliary gestural system for international communication at sporting or cultural events since the early 19th century. The need to standardise an international sign system was discussed at the first World Deaf Congress in 1951, when the WFD was formed. In the following years, a pidgin developed as the delegates from different language backgrounds communicated with each other, and in 1973, a WFD committee ("the Commission of Unification of Signs") published a standardized vocabulary. They selected "naturally spontaneous and easy signs in common use by deaf people of different countries" to make the language easy to learn. A book published by the commission in the early 1970s, Gestuno: International Sign Language of the Deaf, contains a vocabulary list of about 1500 signs. The name "Gestuno" was chosen, referencing gesture and oneness.
However, when Gestuno was first used, at the WFD congress in Bulgaria in 1976, it was incomprehensible to deaf participants. Subsequently, it was developed informally by deaf and hearing interpreters, and came to include more grammar — especially linguistic features that are thought to be universal among sign languages, such as role shifting and the use of classifiers. Additionally, the vocabulary was gradually replaced by more iconic signs and loan signs from different sign languages.
The first training course in Gestuno was conducted in Copenhagen in 1977 to prepare interpreters for the 5th World Conference on Deafness. Sponsored by the Danish Association of the Deaf and the University of Copenhagen, the course was designed by Robert M. Ingram and taught by Betty L. Ingram, two American interpreters.
The name Gestuno has fallen out of use, and the phrase "International Sign" is now more commonly used in English to identify this sign variety. Indeed, current IS has little in common with the signs published under the name 'Gestuno'.
A parallel development has been occurring in Europe in recent years, where increasing interaction between Europe's deaf communities has led to the emergence of a pan-European pidgin or creole sign. It is referred to by some sign linguists as "Eurosigns". Influence in Euro-Signs can be seen from British Sign Language, French Sign Language and Scandinavian signs.
International Sign has a simplified lexicon. In IS for example, the English “who”, “what”, and “how” are all translated simply to “what”. Another example of this simplified lexicon is the location of the sign itself. IS will use movements from the chest to indicate feeling signs, and signs near the head will indicate knowledge. 
The lexicon of International Sign is made by negotiation between signers. IS Signers reportedly use a set of signs from their own national sign language mixed with highly iconic signs that can be understood by a large audience. In 1973, a committee created and standardized a system of international signs. They tried to choose the most understandable signs from diverse sign languages to make the language easy to learn for not only the deaf but for interim management and an ordinary person. IS interpreter Bill Moody noted in a 1994 paper that the vocabulary used in conference settings is largely derived from the sign languages of the Western world and is less comprehensible to those from African or Asian sign language backgrounds. A 1999 study by Bencie Woll suggested that IS signers often use a large amount of vocabulary from their native language, choosing sign variants that would be more easily understood by a foreigner. In contrast, Rachel Rosenstock notes that the vocabulary exhibited in her study of International Sign was largely made up of highly iconic signs common to many sign languages:
Over 60% of the signs occurred in the same form in more than eight SLs as well as in IS. This suggests that the majority of IS signs are not signs borrowed from a specific SL, as other studies found, but rather are common to many natural SLs. Only 2% of IS signs were found to be unique to IS. The remaining 38% were borrowed (or "loan") signs that could be traced back to one SL or a group of related SLs.
People communicating in International Sign tend to make heavy use of role play, as well as a feature common to most sign languages researched to date: an extensive formal system of classifiers. Classifiers are used to describe things, and they transfer well across linguistic barriers. It has been noted that signers are generally better at interlingual communication than non-signers, even without a lingua franca. Perhaps, along with deaf people's experience with bridging communication barriers, the use of classifiers is a key reason.
A paper presented in 1994 suggested that IS signers "combine a relatively rich and structured grammar with a severely impoverished lexicon". Supalla and Webb (1995) describe IS as a kind of a pidgin, but conclude that it is "more complex than a typical pidgin and indeed is more like that of a full sign language".
Letters and numbers
A manual alphabet is used for fingerspelling names, which is based on the one-handed systems used in Europe and America for representing the Roman alphabet. In a two-way conversation, any manual alphabet known may be used; often one speaker will fingerspell using the alphabet of the other party, as it is often easier to spell quickly in an unfamiliar alphabet than to read quickly. ISL also has a standardised system of numbers as these signs vary greatly between sign languages.
Use of indigenous signs
Each region's own sign is preferred for country and city names. This may be used in conjunction with spelling and classifying for the first instance, and the indigenous sign used alone from then on.
Key Issues with International Sign
Simplification of signs in IS can vary between interpreters (one can choose a simplification over a much longer explanation), and because of this, certain information can be lost in translation. Because sign language relies heavily on local influences, many Deaf people don’t understand each others’ signs. Furthermore, cultural differences in signs can vary even within borders. In these cases, many Deaf people revert to finger-spelling and gestures or mime, which has its own variations based on similar sign language properties.
The World Federation of the Deaf (WFD) has voiced concern about the issues with simplification and standardization, and that it limits a sign to a single meaning or word, thus losing all natural forms of the initial meaning. Furthermore, a study commissioned by the WFD in 2007 showed that IS is used primarily only in Europe and the United States further alienating other nations from the process of building a united language.
- WFD homepage – contains a short QuickTime video in IS with English subtitles.
- Digital version of Gestuno: International Sign Language of the Deaf / Langage Gestuel International des Sourds — Contains original IS signs (many now outdated) in photograph form
- Short International Sign Language Dictionary web-archive 
- EU sample dictionary of IS" 
- European Union on the Deaf (EUD) - Information on IS 
- Signs2Cross Project - Information on International Sign 
- Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "International Sign". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
- Rubino, F., Hayhurst, A., and Guejlman, J. (1975). Gestuno. International sign language of the deaf. Carlisle: British Deaf Association.
- McKee R., Napier J. (2002) "Interpreting in International Sign Pidgin: an analysis." Journal of Sign Language Linguistics 5(1).
- Bar-Tzur, David (2002). International gesture: Principles and gestures website
Moody, W. (1987).International gesture. In J. V. Van Cleve (ed.), "Gallaudet encyclopedia of deaf people and deafness", Vol 3 S-Z, Index. NewYork: McGraw-Hill Book Company Inc.
- Woll, Bencie and Ladd, Paddy (2003). Deaf communities. In M. Marschark and P. Spencer (eds.), The Handbook of Deaf Studies, Language and Education (pp. 151-163). Oxford: Oxford University Press.
- McKee R., Napier J. (2002), citing:
*Moody, B. (n.d.). International communication among deaf people. Unpublished, undated manuscript.
*Scott Gibson, L. & R. Ojala (1994). “International Sign Interpreting.” Paper presented to the Fourth East and South African Sign Language Seminar, Uganda, August 1994.
- British Deaf Association. (1975). Gestuno: International sign language of the deaf. Carlisle, England: BDA.
- Rosenstock, Rachel. International Sign: Negotiating Understanding, Research at Gallaudet, Fall 2005 - Winter 2006. This article was derived from the author's 2004 PhD dissertation:
* Rosenstock, Rachel. (2004). An Investigation of International Sign: Analyzing Structure and Comprehension. Gallaudet University.
- Moody, Bill (2002). "International Sign: A Practitioner's Perspective." Journal of Interpretation, 1-47.
- Rosenstock, Rachel (2008). "The Role of Iconicity in International Sign". Sign Language Studies. 8 (2): 131–159. doi:10.1353/sls.2008.0003. ISSN 1533-6263.
- European Union of the Deaf. "International Sign". EUD. Retrieved 2018-11-19.
Experienced IS signers try to be as independent from one specific national sign language as possible, to ensure a large audience of varied backgrounds can understand the message to the fullest extent possible.
- Deaf Linx. "International Sign Language". Deaflinx. Retrieved 2018-11-19.
- Signs For Humanity (2018-07-24). "Deaf people from different countries can communicate with each other using something called International Sign!". Facebook. Length 1:34 minutes. Retrieved 2018-11-19.
- Moody, B. (1994). International Sign: Language, pidgin or charades? Paper presented at the "Issues in Interpreting 2" conference, University of Durham, Durham, April 1994. Cited in McKee R., Napier J. (2002)
- Sutton-Spence, Rachel and Woll, Bencie. (1999) The Linguistics of British Sign Language: An Introduction. p. 32. ISBN 0-521-63718-X
- Day, Linda, (2000) British Sign Language in its Social Context, Session 10: Language Planning and Standardisation - notes for students
- Rosenstock, Op cit.
- Allsop, Lorna; Woll, Bencie; Brauti, John Martin (1995). International sign: The creation of an international deaf community and sign language. In: Bos, Heleen F. and Schermer, Gertrude M. (eds): "Sign Language Research 1994: Proceedings of the Fourth European Congress on Sign Language Research, Munich, September 1–3, 1994." (International Studies on Sign Language and Communication of the Deaf; 29) Hamburg : Signum (1995) - p. 187
- Supalla, T. and Webb, R. (1995). "The grammar of international sign: A new look at pidgin languages." In: Emmorey, Karen / Reilly, Judy S. (eds): Language, gesture, and space. (International Conference on Theoretical Issues in Sign Language Research) Hillsdale, N.J. : Erlbaum (p. 347).
- Rosenstock, Rachel (2008). "The Role of Iconicity in International Sign". Sign Language Studies. 8 (2): 144–146. doi:10.1353/sls.2008.0003. ISSN 1533-6263.
- Battison, Robbin; Jordan, I. King (1976). "Cross-Cultural Communication with Foreign Signers: Fact and Fancy". Sign Language Studies. 1010 (1): 57–59. doi:10.1353/sls.1976.0018. ISSN 1533-6263.
- Battison, Robbin; Jordan, I. King (1976). "Cross-Cultural Communication with Foreign Signers: Fact and Fancy". Sign Language Studies. 1010 (1): 60. doi:10.1353/sls.1976.0018. ISSN 1533-6263.
- Adam, Robert (2015-07-08). "Standardization of Sign Languages". Sign Language Studies. 15 (4): 432–445. doi:10.1353/sls.2015.0015. ISSN 1533-6263.
- Green, E. Mara (2014-08-13). "Building the tower of Babel: International Sign, linguistic commensuration, and moral orientation". Language in Society. 43 (4): 451–452. doi:10.1017/s0047404514000396. ISSN 0047-4045.
- "The ISL video dictionary: 440 words - Sématos". www.sematos.eu. Retrieved 2018-10-16.
- "International Sign | European Union of the Deaf". European Union of the Deaf. Retrieved 2018-10-16.
- "international sign | Signs2Cross". www.acm5.com (in Norwegian Bokmål). Retrieved 2018-10-16.
- Indigenous signs for countries
- Indigenous signs for cities
- Digital version of Gestuno: International Sign Language of the Deaf / Langage Gestuel International des Sounds
- McKee R., Napier J. (2002) "Interpreting in International Sign Pidgin: an analysis." Journal of Sign Language Linguistics 5(1).
- Allsop, Lorna; Woll, Bencie; Brauti, John Martin (1995). International sign: The creation of an international deaf community and sign language. In: Bos, Heleen F. and Schermer, Gertrude M. (eds): "Sign Language Research 1994: Proceedings of the Fourth European Congress on Sign Language Research, Munich, September 1–3, 1994." (International Studies on Sign Language and Communication of the Deaf; 29) Hamburg : Signum (1995) - pp. 171–188
- Supalla, Ted and Webb, Rebecca, (1995). "The grammar of international sign: A new look at pidgin languages." In: Emmorey, Karen / Reilly, Judy S. (eds): Language, gesture, and space. (International Conference on Theoretical Issues in Sign Language Research) Hillsdale, N.J. : Erlbaum - pp. 333–352.
- Webb, Rebecca and Supalla, Ted, (1994). Negation in international sign. In: Ahlgren, Inger / Bergman, Brita / Brennan, Mary (eds): Perspectives on sign language structure: Papers from the Fifth International Symposium on Sign Language Research. Vol. 1; Held in Salamanca, Spain, 25–30 May 1992. Durham : isla (1994) - pp. 173–186
- Moody, W. (1987). "International Gestures." In: van Cleve, J. V. (ed.) Gallaudet encyclopedia of deaf people and deafness. Vol. 3. S-Z,Index. New York, NY [u.a.] : McGraw-Hill Book Company, Inc. - pp. 81–82.
- Rubino, F., Hayhurst, A., and Guejlman, J. (1975). Gestuno. International sign language of the deaf. (revised and expanded). Carlisle: British Deaf Association [for] the World Federation of the Deaf.
- Magarotto, Cesare, (1974). Towards an International Language of Gestures. (Unesco Courier)