constructed language
human language whose phonology, grammar, and vocabulary have been consciously devised for human or human-like communication
Klingon
constructed language created for Star Trek
a posteriori language
constructed language whose elements are borrowed from or based on existing languages
planned language
consciously designed human language
Gibson Code
constructed language
Mini
international auxiliary language created in 2020
languages constructed by J. R. R. Tolkien
constructed languages of British author and philologist J.R.R. Tolkien
Formosan
language invented by George Psalmanazar
Mirad
constructed language
Idiom Neutral
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
High Icelandic
constructed version of Icelandic to be devoid of "foreign" influences
argot
secret language variety which is intentionally obscure to people outside a group
musical language
constructed language based on musical sounds
Ascian
fictional language
UNI
conlang presented year 1974
Ido
constructed international auxiliary language
Neo
international auxiliary language created by Arturo Alfandari
Siberian
constructed language
Interlingua
international auxiliary language created by IALA
a priori language
constructed language whose vocabulary has been invented from scratch
Black Speech
fictional language in the fantasy works of J. R. R. Tolkien
Latino moderne
artificial language
International Code of Signals
international system of signals and codes for use by vessels to communicate important messages regarding safety of navigation and related matters
philosophical language
branch of philosophy
Atlantean
fictional language in Disney's Atlantis
Esperanto
international auxiliary language designed by L. L. Zamenhof
artistic language
language constructed for aesthetic reasons
Proto-Esperanto
language sketches by Zamenhof prior to Esperanto
controlled language
subset of a natural language
experimental language
constructed language designed for linguistics research
Utopian
constructed language used in the book "Utopia" by Thomas More
Lingua Franca Nova
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
engineered language
constructed languages devised to test or prove how languages work