Lojban

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lo lojbo uitki i re djine poi narju.png
Lojban (pronounced [ˈloʒban])
is an experiment in human language –
a constructed language based on predicate logic.

What is Lojban?

a «lightning talk» introduction to Lojban by Timo Paulssen
«prami simbi'o», a song by Djemynai
«ro lo ma'a datka», a song by guskant

Lojban is a carefully constructed spoken language. It has been built for over 50 years by dozens of workers and hundreds of supporters.

  • Lojban's grammar is simpler than of most natural languages, but complex in its own unique way. Lojban is an experiment in thought, as well, it wishes to see how these unique language structures affect thought and understanding.
  • Lojban allows the expression of tiny nuances in emotion, using words called attitudinals, which are essentially spoken emoticons.
  • Lojban allows you to communicate concisely without unnecessary or undesired details. For example, you don't have to always think of what tense (past, present or future) to use in a verb when it's already clear from context.
  • Lojban is machine parsable, which allows potential new explorations in the fields of artificial intelligence and machine translation.
  • Lojban has a live community of speakers expanding its vocabulary day by day.

Lojban means different things to different people

  • a linguistic curiosity - a test-bed for language experimentation
  • a challenging way to expand their minds or discipline their thoughts
  • a new perspective on languages
  • an entertaining medium to communicate with friends or create art
  • a domain for exploring the intersection of human language and software

What will Lojban mean for you?

More basic information ...

Learning Lojban

Official resources

  • "The Complete Lojban Language", a reference grammar of Lojban. This book will teach you how to read and use Lojban, what the different types of words and grammatical constructs do. It does not, however, teach vocabulary, style, or colloquial language. Please note that since the initial publication of the reference grammar, some language reforms such as xorlo have become widely adopted.

Unofficial and supplemental resources

«Lessons in Lojban» by Dustin Lacewell
«The Perfect Language», an introduction to Lojban by Wesley Wilson

Different non-authoritative learning resources have been created. They are said to be more beginner-friendly.

Dictionaries

Related things

Software tools

  • Memrise.com offers on-line Lojban vocabulary flashcards. Anki is a downloadable alternative.
  • camxes is an automatic grammar of Lojban. It can help you to understand the structure and correctness of sentences.

Other learning materials ...

Connect with the community

«bripre jikca», a community literary vlog

Lojban is spoken by a vibrant community, producing literature, music, and art, and discussing questions about language and thought. The web comic xkcd said that, if you spoke Lojban, you'd have to speak with Lojbanists. That may not be such a bad thing!

IRC (Internet Relay Chat)

At any time of day, there are likely to be Lojbanists available on IRC to answer questions or engage in real-time Lojban conversation. Join the chat in your browser with the KiwiIRC or QWebIRC browser-based clients, or connect with the IRC client of your choice. There are three channels (chat rooms) on the Freenode IRC network (host: chat.freenode.net, ports: 6667 or 6697 for an SSL-encrypted connection) that are typically used for Lojban:

  • #lojban for discussion about Lojban in any language
  • #ckule for the teaching of Lojban and questions from beginners in any Language
  • #jbosnu for discussions exclusively in Lojban

Here is an cheat sheet for those unfamiliar with IRC.

Mailing lists

Got a question about Lojban?
Ask the the lojban-beginners mailing list!

The lojban-beginners mailing list is for questions about learning and understanding Lojban. You can subscribe to the list by sending a question to lojban-beginners@googlegroups.com.

The general-purpose lojban mailing list, which covers anything else related to Lojban, was founded in 1989, and has about 500 subscribers. You can subscribe to it by sending an email to lojban@googlegroups.com.

Social media

Lojban has a presence on many of the most popular web sites: Facebook Logo Mini.svg Facebook, Google plus icon.svg Google+, reddit-12.png Reddit, quora.png Quora.

la jbotcan is an informal bulletin board which hosts images and discussions in Lojban and English.

International Contacts

an exposition by guskant in Japanese
  Languages spoken
la selpa'i
seladwa@gmx.de
English, German
la gleki
gleki.is.my.name@gmail.com
English, Russian
la ilmen
ilmen.pokebip@gmail.com
English, French
la tsani
nictytan@gmail.com
English, French
la xorxes
jjllambias@gmail.com
English, Spanish
la guskant
gusni.kantu@gmail.com
English, French, Chinese, Japanese, Esperanto
la remod
rdentato@gmail.com
English, Italian

Lojban around the world - other ways of communication ...

What's next?

  • Try your hand at translating into Lojban, or write your own original texts: Poetry, prose, blogs, tweets, etc.
  • Continue learning vocabulary using memorization software.
  • Help expand the dictionary by translating Lojban words into other languages, or coin new compound words and add them.

More info ...


This web site is dedicated to documenting Lojban and the activities of the Lojban-using community, and also serves as the official web site of the Logical Language Group (LLG), a non-profit organization founded in 1987 to promote the scientific study of the relationships between language, thought and human culture.

From Lojban news...

Community news

28 July 2015

- BPFK (baupla fuzykamni), Lojban's language planning committee, was called to order on the bpfk-list. Initial topics of discussion include membership, voting, and the use of lojban in committee proceedings.

12 July 2015

- la .cogas. published «claxu be do crisa» ("Summer Without You"), a new original song in Lojban.

28 June 2015

- The LLG Board of Directors have re-elected Robert Lechavalier as President. And Rosta has been elected Vice President. Riley Martinez-Lynch has been elected as Secretary/Treasurer. Many thanks to outgoing Vice President Veijo Vilva, and long time Secretary/Treasurer Robin Lee Powell.

On the Internet

Twitter

おかゆ・じんぎべろ @oka_iu_tcan
@s_i_d_a ua 既にありましたww(しまった {xaicku}を作ってしまった) jb...
oka_iu_tcan 2015-07-30 04:48:21
おかゆ・じんぎべろ @oka_iu_tcan
finti lo cnino fu'ivla no'u zo xaicku jbovlaste.lojban.org/dict/xaicku
oka_iu_tcan 2015-07-30 04:41:56
anon.fm @anon_fm
mw.lojban.org/images/2/20/72…
anon_fm 2015-07-29 20:45:05

Google Groups: lojban

Re: [lojban] Sensations / qualia (colors etc.)
Hm kinda a good point; guess that comes back to xorlo, doesn't it? I'm not sure it's the same though. Seeing the color red is somewhat different than seeing a red thing, real or imagined.
Spheniscine (la zipcpi) 2015-07-30 00:49:33
Re: [lojban] Sensations / qualia (colors etc.)
> One question that comes up time and again is how to separate "red", the > color, from an object that's red, {lo xunre}. E.g. "I like (the color) > red". "Red is a beautiful color". >...
xorxes 2015-07-29 22:07:59

GoogleGroups: lojban-beginners

Re: [lojban-beginners] Re: Differenes between “ka” and “nu”
(I already use nitcu2 as a property) > but I'm not sure > this is a sustainable route; we'd then need new brivla for every brivla > where a {ka} belonging to x1 is useful as a substitution...
selpa'i 2015-07-23 21:30:26
Re: [lojban-beginners] Anki study decks not working
2015-07-23 15:29 GMT+03:00 Timothy Lawrence <timothy....@connect.qut.edu.au> : > I downloaded the Anki study decks from > http://mw.lojban.org/papri/Lojbanic_Software but they are not w...
la gleki 2015-07-23 12:50:37

GoogleGroups: bpfk-list

Re: [bpfk] gentufa lo'u vei ny paroi mo le'u
On Wed, Jul 29, 2015 at 8:58 AM, la gleki <gleki.is...@gmail.com> wrote: > i la jbofi'e cu kakne i zoi > zoi > (0[{<vei (1ny BOI)1 VE'O> <(1pa roi)1 mo> KU} VAU])0 > z...
xorxes 2015-07-29 21:22:36
Re: [bpfk] doi lo cmima be la kamni
je'e .i simlu lo ka nunracli .i la'a na sarcu fa lo nu finti so'i javni be lo nu cmicu'a .i mi kanpe lo nu so'e da poi se casnu zo'u lo ka facki lo du'u xu kau lo kamni cmima cu tugysi'u tu'a da cu...
selpa'i 2015-07-29 12:35:10