Conlangs without ISO 639-3 code

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.

constructed science-fiction language

Ithkuil is an experimental constructed language created by John Quijada. It is designed to express more profound levels of human cognition briefly yet overtly and clearly, particularly about human categorization. It is a cross between an a priori philosophical and a logical language. It tries to minimize the vagueness and semantic ambiguity in natural human languages. Ithkuil is notable for its grammatical complexity and extensive phoneme inventory, the latter being simplified in an upcoming redesign. The name "Ithkuil" is an anglicized form of Iţkuîl, which in the original form roughly meant

fictional language in "Game of Thrones"

fictional language in the fantasy works of J. R. R. Tolkien

extinct language

naturalistic constructed language

Simlish is a constructed language devised by game designer Will Wright for the Sims game series developed by Electronic Arts. During the development of SimCopter (1996), Wright sought to avoid real-world languages, believing that players would grow to show disdain for repetitive dialogue. For the release of The Sims, Maxis recorded hundreds of voice clips with unique cadences and emotional nuance.

French progressive rock band

Adûnaic (or Númenórean) ("language of the West") is one of the fictional languages devised by J. R. R. Tolkien for his fantasy works.

mystical language created by St. Hildegard of Bingen

constructed language based on the most widely spoken languages

Europanto is a macaronic language concept with a fluid vocabulary from European languages of the user's choice or need. It was conceived in 1996 by Diego Marani (a journalist, author and translator for the European Council of Ministers in Brussels) based on the common practice of word-borrowing usage of many European languages. Marani used it in response to the perceived dominance of the English language; it is an emulation of the effect that non-native speakers struggling to learn a language typically add words and phrases from their native language to express their meanings clearly.

a priori constructed language

Nadsat is a fictional register or argot used by the teenage gang members in Anthony Burgess' dystopian novel A Clockwork Orange. Burgess was a linguist and he used this background to depict his characters as speaking a form of Russian-influenced English. The name comes from the Russian suffix equivalent of -teen as in thirteen (, ). Nadsat was also used in Stanley Kubrick's film adaptation of the book.

constructed language

Enochian ( ) is an occult constructed language—said by its originators to have been received from angels—recorded in the private journals of John Dee and his colleague Edward Kelley in late 16th-century England. Kelley was a scryer who worked with Dee in his magical investigations. The language is integral to the practice of Enochian magic.

Yerkish is an artificial language developed for use by non-human primates. It employs a keyboard whose keys contain lexigrams, symbols corresponding to objects or ideas.

constructed language

constructed language

constructed language

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".

fictional language in Disney's Atlantis

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.

Damin ( in the practical orthography of Lardil) was a ceremonial language register used by the advanced initiated men of the aboriginal Lardil ( in the practical orthography) and Yangkaal peoples of northern Australia. Both inhabit islands in the Gulf of Carpentaria, the Lardil on Mornington Island, the largest island of the Wellesley Islands, and the Yangkaal on the Forsyth Islands. Their languages belong to the same family, the Tangkic languages. Lardil is the most divergent of the Tangkic languages, while the others are mutually comprehensible with Yangkaal.

Syldavian is a fictional West Germanic language created by Hergé as the national language of Syldavia, a fictional Balkan kingdom that serves as a major setting in many of The Adventures of Tintin stories. Hergé modeled the language on Brusselian, a dialect of Dutch spoken in and around Brussels. The entire corpus of the language has been analyzed by Mark Rosenfelder.

Romanid is a zonal auxiliary language for speakers of Romance languages, intended to be understandable to them without prior study. It was created by the Hungarian language teacher Zoltán Magyar, who published a first version in May 1956 and a second in December 1957. In 1984, he published a phrasebook with a short grammar, in which he presents a slightly more simplified version of the language.

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

constructed language

constructed language of fictional world

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.

Brajabuli is an artificial literary language popularized by the Maithili poet Vidyapati. His Brajabuli lyrics about the love for Radha Krishna is considered to his best of works. Other poets emulated his writing, and the language became established in the 16th century. Among the medieval Bengali poets who wrote in Brajabuli are Narottama Dasa, Balarama Das, Jnanadas, and Gobindadas Kabiraj.

spurious Brazilian language, invented 1901

international auxiliary language

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).

American fugitive

fictional language

language

Transpiranto is a parody language, a caricature of the international auxiliary language Esperanto. The name contains a play on the Swedish verb transpirera, to perspire. The parody language was developed from 1929 by contributors to the publication Grönköpings Veckoblad ('the Greenville Weekly', a Swedish satirical monthly), through a series of comical translations of well-known Scandinavian songs and poems, more than 200 in all. The first two Transpiranto poems were written by Nils Hasselskog.

Ādurgari is a secret language of the nomadic Shaikh Mohammadi group of peddlers of east Afghanistan, used especially in the presence of outsiders. It is taught to children starting at the age of six or seven as they would be speaking Persian until then; all adults speak it in addition to their native Dari. The name is apparently derived from a word referring to their activity of peddling (ādur), and it has tentatively been suggested this might indicate a possible connection with the Kharduri people of Uzbekistan.

Aklo is the name of a fictional language that has been used by many authors from its first reference in 1899. In the stories the language features in, it is said to have mystical powers.

constructed language based on Esperanto

Kēlen () is a constructed language created by Sylvia Sotomayor in 1998. The language is designed to be a truly alien language by violating a key linguistic universal — namely that all human languages have verbs. In Kēlen, relationships between noun phrases making up the sentence are expressed by one of four relationals. According to Sotomayor, these relationals perform the functions of verbs but lack any of the semantic content. However, the semantic content found in common verbs, such as those that are semantic primes, can also be found in Kēlen's relationals, which calls into question whethe

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.