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This page might be incomplete — you are advised to refer to the article Lojban on the lojban.org wiki.

Lojban (loglang)
la .lojban. [laʔˈloʒbanʔ]
created in: 1987
by: Bob LeChevalier (lojbab)
kind:Loglan-like (‘LoCCan’)
influenced by:Loglan
script:Latin (among others)
specification:The Complete Lojban Language (in English)
regulated by:The Logical Language Group (in English)

Lojban (U.S. English pronunciation: [ˈloʊ̯ʒ.bɑn]) is the largest logical language in terms of its community of users, elaborated grammar, lexicon and corpus of written material. It is the only loglang so far to have been used as the primary language in a full-length film[1] and a rap album[2]. Lojban was developed beginning in 1987 by Bob LeChevalier and other members of the Logical Language Group (LLG) as a project to further develop Loglan outside the control of Loglan's creator. Lojban has been called a "realization of Loglan"; the two languages share the vast majority of their fundamental grammar but are mutually unintelligible. The standard reference grammar for Lojban, John Woldemar Cowan's The Complete Lojban Language, was published in 1997, establishing a "baseline" of usage. Lojban continues to be actively used by enthusiasts, mostly as a written language.


Main article: History of Loglan and Lojban.

Conception and applications

Linguistic properties

Phonemic inventory and orthography

Phonology and morphology


Other notable features

Unresolved issues


Semantic and philosophical

Dialects and descendants

Main article: Lojban dialects.