International auxiliary languages

Esperanto () is the world's most widely spoken constructed auxiliary language. Created by L. L. Zamenhof in 1887 as "the International Language" (), it is intended to be a universal second language for international communication. He described the language in ''Dr. Esperanto's International Language'' (known as , the "first book"), which he published under the pseudonym . Early adopters of the language liked the name and soon used it to describe his language. The word translates into English as "one who hopes".

Interlingue (; ISO 639 ie, ile), originally Occidental (), is an international auxiliary language created in 1922 and renamed in 1949. Its creator, Edgar de Wahl, sought to achieve maximal grammatical regularity and natural character. The vocabulary is based on pre-existing words from various languages and a derivational system which uses recognized prefixes and suffixes.

Interlingua (, ) is an international auxiliary language (IAL) developed between 1937 and 1951 by the American International Auxiliary Language Association (IALA). It is a constructed language of the "naturalistic" variety, whose vocabulary, grammar, and other characteristics are derived from natural languages. Interlingua literature maintains that (written) Interlingua is comprehensible to the billions of people who speak Romance languages, though it is actively spoken by only a few hundred.

auxiliary constructed language, originally created by C. George Boeree, and largely based on a Romance substrate partially creolized then modified by some evolutive rules of simplification

Ido () is a constructed language derived from a reformed version of Esperanto, and designed similarly with the goal of being an international auxiliary language (or universal second language) for people of diverse languages. To function as an effective international auxiliary language, Ido was designed specifically to be grammatically, orthographically, and lexicographically regular (and, above all, easy to learn and use). It is the most successful of the many Esperanto derivatives, known as Esperantidoj.

Glosa is a constructed international auxiliary language based on Interglossa (a previous draft of an auxiliary published in 1943). The first Glosa dictionary was published 1978. The name of the language comes from the Greek root glossa meaning tongue or language.

language meant for communication between people from different nations who do not share a common first language

English-based controlled language

Solresol (Solfège: Sol-Re-Sol), originally called (lit. 'Universal language') and then ('Universal musical language'), is a musical constructed language devised by French music teacher and composer Jean-François Sudre (1787–1862), beginning in 1817. His book defining it, , was published posthumously in 1866, though he had already been publicizing it for some years. Solresol enjoyed a brief spell of popularity in the latter half of the century and was sponsored by such figures as Victor Hugo, Alphonse de Lamartine, Alexander von Humboldt and Napoleon III, culminating with Boleslas Gajewski's pu

Kotava (sometimes also spelled Kodava) is an international auxiliary language (IAL) created by Staren Fetcey in 1978 that focuses on the principle of cultural neutrality. The name means "the language of one and all", and the Kotava community has adopted the slogan "a project humanistic and universal, utopian and realistic". The language is mainly known in French-speaking countries and most learning materials for it are in French.

Latin-based international auxiliary language

Interglossa (lit. "between + language") is a constructed language devised by biologist Lancelot Hogben during World War II, as an attempt to put the international lexicon of science and technology, mainly of Greek and Latin origin, into a language with a purely isolating grammar. Interglossa was published in 1943 as just a draft of an auxiliary. Hogben applied semantic principles to provide a reduced vocabulary of just over 880 words which might suffice for basic conversation among peoples of different nationality.

international auxiliary language, published by the International Academy of the Universal Language in 1902 under the leadership of W. Rosenberger; a heavy revision of Volapük

sign language, used particularly at international meetings

constructed language based on the most widely spoken languages

Blissymbols or Blissymbolics is a constructed language conceived as an ideographic writing system called Semantography consisting of several hundred basic symbols, each representing a concept, which can be composed together to generate new symbols that represent new concepts.

An Esperantido (plural Esperantidoj) is a constructed language derived from Esperanto. Esperantido originally referred to the language which is now known as Ido. The word Esperantido contains the affix (-ido), which means a "child (born to a parent), young (of an animal) or offspring". Hence, Esperantido literally means an 'offspring or descendant of Esperanto'. The term was coined by Claus Killing-Günkel.

international auxiliary language created by Arturo Alfandari

thumb | right Proto-Esperanto () is the modern term for any of the stages in the evolution of L. L. Zamenhof's language project, prior to the publication of in 1887.

rules for inflection in certain auxlangs, based on sound laws

codified pan-Romance language project

Adjuvilo is a constructed language created in 1910 by Claudius Colas under the pseudonym of "Profesoro V. Esperema". Although it was a full language, it may not have been created to be spoken. Many believe that as an Esperantist, Colas created Adjuvilo to help create dissent in the then-growing Ido movement. Colas himself called his language simplified Ido and proposed several reforms to Ido.

subset of standard English grammar and a list of 1500 English words

group of languages

constructed language

body of academics the world language in 1901

Balaibalan () is the oldest known constructed language.

Esperantido

Sambahsa () or Sambahsa-Mundialect is an international auxiliary language (IAL) and worldlang devised by French linguist Olivier Simon. It is based on the Proto-Indo-European language (PIE) and has a complex grammar. The language was first released on the Internet in July 2007; prior to that, the creator claims to have worked on it for eight years. According to a study addressing recent auxiliary languages, "Sambahsa has an extensive vocabulary and a large amount of learning and reference material".

languages made to bridge a language group

Uropi is a constructed language which was created by Joël Landais, a French English teacher. Uropi is a synthesis of European languages, explicitly based on the common Indo-European roots and aims at being used as an international auxiliary language for Europe and thus contributing to building a European identity.

constructed language

'''''' is one of the earliest international auxiliary languages.

foundation which strives to solve international language problems

hypothetical language that is supposed to have been spoken by all or most of the world's population

Universalglot is an a posteriori international auxiliary language published by the French linguist Jean Pirro in 1868 in ''Tentative d'une langue universelle, Enseignement, grammaire, vocabulaire''. Preceding Volapük by a decade and Esperanto by nearly 20 years, Universalglot has been called the first "complete auxiliary-language system based on the common elements in national languages". Pirro gave it more than 7,000 basic words and numerous prefixes, enabling the development of a very extensible vocabulary.

Mundolinco is a constructed language created by the Dutch author J. Braakman in 1888. It is notable for apparently being the first Esperantido, i.e. the first Esperanto derivative, published the year after Esperanto was introduced in the Unua Libro.

compromise planned language

international auxiliary language

organization initially dedicated to propagating Latino sine Flexione (also called Interlingua)

Esperanto reform of 1937

history of a costructed language

Budinos is a constructed language designed to be an international auxiliary language for speakers of Finno-Ugric languages. Budinos builds mainly on Udmurt and Hungarian but also has features from Finnish, Estonian, Mari, and other related languages.

Babm () is an international auxiliary language created by the Japanese philosopher (), also known as Fuishiki Okamoto. Okamoto first introduced the language in his 1962 publication The Simplest Universal Auxiliary Language Babm. The language did not achieve widespread adoption, even within the constructed language community, and currently has no known speakers. The language uses the Latin script as a syllabary, and possesses no articles or auxiliary verbs. Each letter marks an entire syllable rather than a single phoneme. Babm adheres to a sound-based rule set, which Okamoto delineates in his

thumb|The cover of the first edition of Pasilingua Pasilingua is an international auxiliary language proposed by Paul Steiner, first published in Neuwied in 1885 in his book Three World Language Systems (German: Drei Weltsprach-Systeme).

language

Willem Visser (1915 — 1991), Dutch linguist, interlinguist

Unish is a constructed language developed by a research team at Sejong University, South Korea. The term “Unish” is used in reference to it being cast as a universal language in the globalized era.

international auxiliary language and abbreviated writing system