Constructed language
Loglan
Esperanto
Lojban
Engineered language
International auxiliary language
Ido
Interlingua
Lingua Ignota
Balaibalan
Kēlen
Quenya
Artistic language
Sindarin
Ithkuil
Volapük
Glosa
Philosophical languages
Láadan
Toki Pona
Fictional language
Language game
Musical language
Relexification
Universal language
Zonal constructed languages
Blissymbols
Brithenig
Enchanta
Enochian
Klingon language
Lingua Franca Nova
Na'vi language
Nadsat
Novial
Occidental language
Slovianski
Solresol
Teonaht
Tsolyáni language
Comparison between Esperanto and Ido
Comparison between Esperanto and Interlingua
Comparison between Esperanto and Novial
Comparison between Ido and Interlingua
Comparison between Ido and Novial
List of language inventors
Conlang X-SAMPA
Langmaker
Language Creation Conference
Chinese whispers
Zompist.com
Idiom Neutral
Latino sine Flexione
Adjuvilo
Afrihili
Arcaicam Esperantom
Babm
Bolak (Blue Language)
Communicationssprache
Esperanto II
Europanto
Lingua sistemfrater
Modern Indo-European
Mondial (language)
Mundolinco
Neo (constructed language)
Noxilo language
Nuwaubic
Poliespo
Sona language
Spokil
Unilingua
Universalglot
Basic English
Globish
Special English
Plain English
Simplified English
E-Prime
Gestuno
An Essay towards a Real Character and a Philosophical Language
AUI (language)
Characteristica universalis
Ilaksh
Isotype (pictograms)
Logopandecteision
Ro (language)
Common Logic
CycL language
Distributed Language Translation
Lincos (language)
LoomLanguage
Resource Description Framework
Universal Networking Language
Adûnaic
Aklo
Babel-17 language
Baronh
Black Speech
Bokonon
Codex Seraphinianus
Drac
Dwarfs (Discworld)
Goodenuf English
High Speech
Láadan language
Lapine language
Mando'a
Marain
Languages of Middle-earth
Molvania
Newspeak
Old Solar
Old Tongue
Orghast
Parseltongue
Pravic
Ptydepe
Quintaglio
Qwghlm
Rihannsu (language)
Spocanian
Stark (language)
Starsza Mowa
Troll (Discworld)
Utopian language
Walt Whitman
Zaum
Eloi language
Jack Womack