View source for Lojban

{{Infobox language
|name=Lojban
|nativename=la .lojban.
|pronunciation=laʔˈloʒbanʔ
|imageheader=Logo
|image=Lojban-slanted.svg
|imagesize=200px
|creator=Logical Language Group
|created=1987
|setting=a logically engineered language for various usages
|script=Latin and others
|familycolor= conlang
|fam1=logical languages
|iso2=jbo
|iso3=jbo
|notice=IPA
|glotto=lojb1234
|brcl = lojb
}}

'''Lojban''' (pronounced {{IPA|ˈloʒban||jbo-lojban.ogg}}) is a conlang, [[w:Syntactic ambiguity|syntactically unambiguous]] human language<!-- based on [[w:predicate logic]]--> created by the '''Logical Language Group.''' It succeeds the [[Loglan]] project.

The Logical Language Group (LLG) began developing Lojban in 1987. The LLG sought to realize [[Loglan]]'s purposes, and further improve the language by making it more usable and freely available (as indicated by its official full English title, "Lojban: A Realization of Loglan"). After a long initial period of debating and testing, the baseline was completed in 1997, and published as ''The Complete Lojban Language''. In an interview in 2010 with ''[[w:The New York Times|The New York Times]]'', [[w:Arika Okrent|Arika Okrent]], the author of ''In the Land of Invented Languages'', stated: "The constructed language with the most complete grammar is probably Lojban—a language created to reflect the principles of logic."<ref>{{cite news |date=March 10, 2010 |url=http://schott.blogs.nytimes.com/2010/03/10/questions-answered-invented-languages/ |title=Questions Answered: Invented Languages |publisher=The New York Times Schott's Vocab blog}}</ref>

==Introduction==
Lojban is proposed as a speakable language for communication between people of different language backgrounds, as a potential means of machine translation, and as a tool to explore the intersection between human language and software.<ref>{{cite web|url=https://mw.lojban.org/papri/Learning/en|title=Welcome!/en - La Lojban|website=mw.lojban.org}}</ref>

===Origin===
The name "{{lang|jbo|Lojban}}" is a [[w:compound (linguistics)|compound]] formed from ''{{lang|jbo|loj}}'' and ''{{lang|jbo|ban}}'', which are short forms of ''{{lang|jbo|logji}}'' (logic) and ''{{lang|jbo|bangu}}'' (language).

=== History ===
Lojban's predecessor, [[Loglan]], a language invented by [[w:James Cooke Brown]] in 1955 and later developed by The Loglan Institute, was originally conceived as a means to examine the influence of language on the speaker's thought (an assumption known as the [[w:Linguistic relativity|Sapir–Whorf hypothesis]]).

As Brown started to claim his copyright<ref>{{cite web|url=http://arj.nvg.org/lojban/why-i-like.html|title=Why I like Lojban|work=nvg.org}}</ref><ref>{{cite web|url=http://www.ainewsletter.com/newsletters/aix_0503.htm#loglan|title=AI Newsletter|work=ainewsletter.com|access-date=2012-04-27|archive-url=https://web.archive.org/web/20111223111830/http://www.ainewsletter.com/newsletters/aix_0503.htm#loglan|archive-date=2011-12-23|url-status=dead}}</ref> on the language's components, bans were put on the community's activity to stop them changing aspects of the language. In order to circumvent such control, a group of people decided to initiate a separate project, departing from the lexical basis of Loglan and reinventing the whole vocabulary, which led to the current lexicon of Lojban. In effect they established in 1987 The Logical Language Group, based in Washington, D.C. They also won a trial over whether they could call their version of the language "Loglan".<ref>Johansen, Arnt Richard. [http://arj.nvg.org/lojban/why-i-like.html ''Why I like Lojban''] (accessed August 2007)</ref>
<!--Lojban was developed to be a [[w:worldlang]].  -->

==Usage==
===As a spoken language===
Lojban is practiced by its speakers in voice and text chats.
===As a programming language===
There've been several installments showing Lojban to be used as a declarative and as a functional programming language.
===As a machine interlingua===
Lojban is proposed to be used as a intermediate language in machine translation (due to it being a speakable language as well, which alleaviates proofreading of texts converted from other languages and due to its syntactic unambiguity).

== Phonology and orthography ==
The phonetic form of Lojban {{lang|jbo|gismu}} (root words) was created algorithmically by searching for sound patterns in words with similar meanings in world languages and by multiplying those sound patterns by the number of speakers of those languages. The list of source languages used for the algorithm was limited to the six [[w:List of languages by number of native speakers|most widely spoken languages]] as of 1987—[[w:Mandarin Chinese|Mandarin]], [[w:English language|English]], [[w:Hindi|Hindi]], [[w:Spanish language|Spanish]], [[w:Russian language|Russian]], and [[w:Arabic|Arabic]]. This resulted in root words being in their phonetic form a relatively equal mixture of English and Mandarin, with lesser influences from the other four.<ref>{{cite web|url=https://lojban.github.io/cll/4/14/|title=The Shape Of Words To Come: Lojban Morphology - The Lojban Reference Grammar|website=lojban.github.io}}</ref><ref>{{cite web|url=https://mw.lojban.org/papri/me_lu_ju'i_lobypli_li'u_13_moi|title=me lu ju'i lobypli li'u 13 moi - La Lojban|website=mw.lojban.org}}</ref><ref>{{cite web|url=https://mw.lojban.org/papri/me_lu_ju'i_lobypli_li'u_14_moi|title=me lu ju'i lobypli li'u 14 moi - La Lojban|website=mw.lojban.org}}</ref>

Lojban is written almost entirely with lower-case letters; upper-case letters are used to mark stress in words that do not fit the normal rules of stress assignment, or when whitespace is omitted.

===Phonetic inventory===
Lojban has 6 [[w:vowel|vowels]] and 17 [[w:consonant|consonants]]. Some of them have, apart from the preferred/standard sounds, permitted variants intended to cover dissimilitude in pronunciation by speakers of different linguistic backgrounds.

The letters in Lojban and their respective pronunciations are shown in the table below. The [[w:International Phonetic Alphabet|IPA]] symbols in parentheses indicate alternative pronunciations; preferred pronunciations have no parentheses.

{| class="wikitable" style="text-align: center;"
|+ Lojban consonant phonemes
|-
! colspan="2" |
! [[w:Labial consonant|Labial]]
! [[w:Alveolar consonant|Alveolar]]
! [[w:Postalveolar consonant|Postalveolar]]
! [[w:Velar consonant|Velar]]
! [[w:Glottal consonant|Glottal]]
|-
! colspan="2" | [[w:Nasal stop|Nasal]]
| {{IPA|m}}{{r|footnote1|group=decimal}} || {{IPA|n}}{{r|footnote1|group=decimal}} ||  ||  || 
|-
! rowspan="2" | [[w:Plosive consonant|Plosive]]
! style="font-size: 80%;" | [[w:Voiceless consonant|voiceless]]
| {{IPA|p}} || {{IPA|t}} ||  || {{IPA|k}} || rowspan="2" | {{IPA|ʔ}}
|-
! style="font-size: 80%;" | [[w:Voiced consonant|voiced]]
| {{IPA|b}} || {{IPA|d}} ||  || {{IPA|ɡ}}
|-
! rowspan="2" | [[w:Fricative consonant|Fricative]]
! style="font-size: 80%;" | [[w:Voiceless consonant|voiceless]]
| {{IPA|f}} ({{IPA|ɸ}}) || {{IPA|s}} || {{IPA|ʃ}} ({{IPA|ʂ}}) || {{IPA|x}} || rowspan="2" | {{IPA|h}} ({{IPA|θ}})
|-
! style="font-size: 80%;" | [[w:Voiced consonant|voiced]]
| {{IPA|v}} ({{IPA|β}}) || {{IPA|z}} || {{IPA|ʒ}} ({{IPA|ʐ}}) || 
|-
! colspan="2" | [[w:Approximant consonant|Approximant]]
|  || {{IPA|l}}{{r|footnote1|group=decimal}} ||  ||  || 
|-
! colspan="2" | [[w:Rhotic consonant|Rhotic]]
|  || colspan="3" | {{IPA|r}}{{r|footnote1|group=decimal}}{{r|footnote2|group=decimal}} || 
|}

{| class="wikitable" style="text-align: center;"
|+ Lojban vowel phonemes
|-
! 
! [[w:Front vowel|Front]]
! [[w:Central vowel|Central]]
! [[w:Back vowel|Back]]
|-
! [[w:Close vowel|Close]]
| {{IPA|i}} ||  || {{IPA|u}}
|-
! [[w:Mid vowel|Mid]]
| {{IPA|ɛ}} ({{IPA|e}}) || {{IPA|ə}} || {{IPA|o}} ({{IPA|ɔ}})
|-
! [[w:Open vowel|Open]]
| colspan="3" | {{IPA|a}} ({{IPA|ɑ}})
|}

{| class="wikitable" border="1"
!
! colspan="23" | Letters
! colspan="3" | Auxiliary characters
|- align=center
! [[w:International Phonetic Alphabet|IPA]]
| {{IPA|a}}<br />({{IPA|ɑ}})
| {{IPA|b}}
| {{IPA|ʃ}}<br />({{IPA|ʂ}})
| {{IPA|d}}
| {{IPA|ɛ}}<br />({{IPA|e}})
| {{IPA|f}}<br />({{IPA|ɸ}})
| {{IPA|ɡ}}
| {{IPA|i}}
| {{IPA|ʒ}}<br />({{IPA|ʐ}})
| {{IPA|k}}
| {{IPA|l}}{{r|footnote1|group=decimal}}
| {{IPA|m}}{{r|footnote1|group=decimal}}
| {{IPA|n}}{{r|footnote1|group=decimal}}
| {{IPA|o}}<br />({{IPA|ɔ}})
| {{IPA|p}}
| {{IPA|r}}{{r|footnote1|group=decimal}}{{r|footnote2|group=decimal}}
| {{IPA|s}}
| {{IPA|t}}
| {{IPA|u}}
| {{IPA|v}}<br />({{IPA|β}})
| {{IPA|x}}
| {{IPA|ə}}
| {{IPA|z}}
| {{IPA|h}}<br />({{IPA|θ}})
| {{IPA|ʔ}}
| .
|- align=center
! [[w:Latin alphabet|Latin]]
| a
| b
| c
| d
| e
| f
| g
| i
| j
| k
| l
| m
| n
| o
| p
| r
| s
| t
| u
| v
| x
| y
| z
| '
| .
| , 
|}

{{reflist |group=decimal |refs=
<ref name=footnote1>Sonorants {{IPA|/m n l r/}} may be [[w:syllabic consonant|syllabic]].</ref>
<ref name=footnote2>There is no preferred sound for {{IPA|/r/}}; any [[w:rhotic consonant|rhotic sound]] is equally acceptable.</ref>
}}

In principle, Lojban may be written in any orthographic system as long as it satisfies the required regularities and unambiguities. Some of the reasons for such elasticity would be as follows:
# Lojban is defined by the [[w:phoneme|phonemes]] rather than graphemes; as long as they are correctly rendered so as to maintain the Lojbanic audio-visual [[w:isomorphism|isomorphism]], a representational system can be said to be an appropriate orthography of the language;
# Lojban is meant to be as culturally neutral as possible, so it is never crucial or fundamental to claim that some particular orthography of some particular languages (e.g. the Latin alphabet) should be the dominant mode.

Some Lojbanists extend this principle of cultural neutrality to claim that Lojban should eventually use its own alphabet.<ref>Kena. [http://vodka-pomme.net/projects/tengwar-for-lojban/write#lojban ''Vodka-Pomme: Considerations on writing: The case of lojban''] (accessed August 2007)</ref>

===Stress===
Stress normally falls on the penultimate syllable.

===Diphthongs===
There are 16 [[w:diphthong|diphthongs]] (and no [[w:triphthong|triphthongs]]. A distinction between diphthongs and monophthongs can be written by inserting a comma in the Latin alphabet. Vowel hiatus is also prevented by inserting an apostrophe, which usually indicates {{IPA|[h]}}, though there are other valid realizations. For those who have trouble pronouncing certain [[w:consonant cluster|consonant clusters]] here is the option of adding vowels between them ([[w:epenthesis|epenthesis]]), as long as they differ sufficiently from the phonological vowels and are pronounced as short as possible. The resulting additional syllables are not factored in the grammar, including for the purposes of stress determination.

==Linguistic properties==
Lojban:
* <!-- has a grammar that is based on [[w:predicate logic]], -->is designed to express complex logical constructs precisely.
* has no irregularities or ambiguities in spelling and grammar (although word derivation relies on arbitrary variant forms). This gives rise to high intelligibility for [[w:parsing|computer parsing]].
* is designed to be as culturally neutral as possible.
* allows highly [[w:second-language acquisition|systematic learning]] and use, compared to most natural languages.
* possesses an intricate system of indicators which effectively communicate contextual [[w:attitude (psychology)|attitude]] or [[w:emotion|emotions]].<!--* It does not have [[w:simplicity]] as a design criterion.-->

== Grammar ==
{{Main|Lojban grammar}}

Lojban has three [[w:parts of speech|word-classes]]: predicate words ({{lang|jbo|brivla}}), structure words ({{lang|jbo|cmavo}}), and name words ({{lang|jbo|cmevla}}). Each of them has uniquely identifying properties, so that one can unambiguously recognize which word is of which part of speech in a string of the language. They may be further divided in sub-classes. There also exists a special fragmental form ({{lang|jbo|rafsi}}) assigned to some predicate words and structure words, from which compound words ({{lang|jbo|lujvo}}) may be created.<ref>Cowan, John Woldemar. [https://mw.lojban.org/papri/the_Lojban_Reference_Grammar  ''The Complete Lojban Language: 4.1]'' (accessed August 2007)</ref><ref>Nicholas, Nick, and John Cowan. [http://lojban.org/publications/level0/brochure/morphol.html  ''What is Lojban?: 2.2''] (accessed August 2007)</ref>

Lojban has also taken the set of evidential indicators from the constructed language [[Láadan]].<ref>Cowan, John. [https://lojban.github.io/cll/13/11/ The Complete Lojban Language 13.11]</ref>

Following the publication of ''The Complete Lojban Language'', it was expected that "the documented lexicon would be baselined, and the combination of lexicon and reference grammar would be frozen for a minimum of 5 years while language usage grew."<ref>[https://mw.lojban.org/papri/Official_Baseline_Statement_(2002/2003) ''Official Baseline Statement'']. lojban.org</ref> As scheduled, this period, which has officially been called the "freeze", expired in 2002. The speakers of Lojban are now free to construct new words and idioms, and decide where the language is heading.

== Syntax and semantics ==
The language's grammatical structures are "defined by a set of rules that have been tested to be unambiguous using computers", which is in effect called the "machine grammar".<ref>Nicholas, Nick. John Cowan. [http://lojban.org/publications/level0/brochure/grammar.html ''What Is Lojban? II.3'']</ref> Hence the characteristics of the standard syntactic (not semantic) constructs in Lojban:
* each word has exactly one grammatical interpretation;
* the words relate grammatically to each other in exactly one way.

Such standards, however, are to be attained with certain carefulness:

{{quotation
|It is important to note that new Lojbanists will not be able to speak 'perfectly' when first learning Lojban. In fact, you may never speak perfectly in 'natural' Lojban conversation, even though you achieve fluency in the language. No English speaker always speaks textbook English in natural conversation; Lojban speakers will also make grammatical errors when talking quickly. Lojbanists will, however, be able to speak or write unambiguously if they are careful, which is difficult if not impossible with a natural language.<br /><br />Nick Nicholas and John Cowan. '[http://lojban.org/publications/level0/brochure/grammar.html ''What Is Lojban? II.3'']}}

The computer-tested, unambiguous rules also include grammar for 'incomplete' sentences e.g. for narrative, quotational, or mathematical phrases.

Its [[w:Linguistic typology|typology]] can be said to be basically [[w:subject–verb–object]] and [[w:subject–object–verb]]. However, it can practically be anything:
* {{lang|jbo|mi prami do}} (SVO) (I love you)
* {{lang|jbo|mi do prami}} (SOV) (By me, you are loved)
* {{lang|jbo|do se prami mi}} (OVS) (You are loved by me)
* {{lang|jbo|do mi se prami}} (OSV) (You, I love)
* {{lang|jbo|prami fa mi do}} (VSO) (Loved by me, you are)
* {{lang|jbo|prami do fa mi}}, {{lang|jbo|se prami fa do mi}} (VOS) (Love you, I do)

Such flexibility has to do with the language's intended capability to translate as many expressions of natural languages as possible, based on a unique positional case system. The meaning of the sentence {{lang|jbo|mi prami do}} is determined by {{lang|jbo|prami}} realizing, with its own predefined "place structure", a specific semantic relation between {{lang|jbo|mi}} and {{lang|jbo|do}}; when the positional relation between {{lang|jbo|mi}} and {{lang|jbo|do}} changes, the meaning of the sentence changes too. As shown above, Lojban has particular devices to preserve such semantic structure of words while altering their order.

As befits a logical language, there is a large assortment of logical connectives. Such conjunction words take different forms depending on what they connect, another reason why the (standard) Lojbanic expressions are typically precise and clear.

Multiple predicate words may be linked up together so as to narrow the semantic scope of the phrase. In {{lang|jbo|sutra dansu}} "to quickly dance", the modifying word {{lang|jbo|sutra}} narrows the sense of the modified word {{lang|jbo|dansu}} to form a more specific concept (in which case the modifier may resemble English adverbs or adjectives).
<!--
* '''English:''' ''Several small fires were burning in the house''.
* '''Lojban:''' {{lang|jbo|so'i cmalu fagri puca'o jelca ne'i le zdani}}
* '''[[w:Gloss (annotation)|Gloss]]:''' ''many small fire past-continuing burn inside the house'' (Translation after English)
-->
One could go still further, adding a quite extreme example of its syntactic flexibility.

Lojban can easily "imitate" even one-word sentences from [[w:polysynthetic language|polysynthetic languages]], for example:

* '''[[w:Nuu-chah-nulth language|Nuu-chah-nulth language]]''': ''inkiwihl'minik'isit''
* '''[[w:Gloss (annotation)|Gloss]]''': ''inkiw (fire/burn) -ihl (in-the-house) -'minik (plural) -'is (diminutive) -'it (past-tense)''

which can be expressed in Lojban the same way:

* '''Lojban:''' {{lang|jbo|fagykemyzdanerso'icmapru}}
* '''Gloss:''' ''fire-type-house-inside-many-small-past-event''

==Lexicon==
Compound words ({{lang|jbo|lujvo}}) and borrowed words ({{lang|jbo|fu'ivla}}) are continually increasing as the speakers find demands. The number of root words ({{lang|jbo|gismu}}) and structure words ({{lang|jbo|cmavo}}) are basically unchanging, but new inventions are to be accepted as experimental components. In fact, it has been noticed that particular inclination or disproportion exists in the available vocabulary. Cortesi<ref>Cortesi, David. [http://nuzban.wiw.org/archive/9110/msg00109.html Lack of Geometry] {{Webarchive|url=https://web.archive.org/web/20120216081724/http://nuzban.wiw.org/archive/9110/msg00109.html |date=2012-02-16 }}</ref> has pointed out the lack of certain terms for mathematics and geometry (although this demand may now be disputed as the current set of Lojban vocabulary does actually allow speakers to express such notions as steradian ({{lang|jbo|stero}}), trigonometric tangent ({{lang|jbo|tanjo}}), multiplicative inverse ({{lang|jbo|fa'i}}), matrix transpose ({{lang|jbo|re'a}}) among a number of other kinds of operators or metric units). Other instances which require speakers to construct noncanonical words:
* There are few entries of African country names on the official list of root words while other country names (especially those with large populations of speakers of the six source languages) are covered to a remarkable extent.
* Such distinction as between {{lang|jbo|palne}} (tray) and {{lang|jbo|palta}} (plate) exist while no distinction between "illustration" and "photography" is made by the available set of {{lang|jbo|gismu}} (that is, no exclusive root word for "photography" exists except the generic {{lang|jbo|pixra}} (picture) (''see also – Grammar: Morphology: {{lang|jbo|brivla}}: {{lang|jbo|gismu}}'').

== Example texts ==

=== Common phrases ===
{| class="wikitable"
|- 
! align=left | Lojban
! align=left | literal meaning
! align=left | English
|- valign=top
|-
| {{lang|jbo|coi}}''/''{{lang|jbo|co'o}} {{Audio|jbo-coi,co'o.ogg|coi/co'o}}|| hello/goodbye || hello!/good-bye!
|-
| {{lang|jbo|pe'u}} {{Audio|jbo-pe'u.ogg|pe'u}}  || please || please!
|-
| {{lang|jbo|ki'e}} {{Audio|jbo-ki'e.ogg|ki'e}} || thanks || thanks!
|-
| {{lang|jbo|.u'u}} {{Audio|jbo-u'u.ogg|u'u}} || (repentance) || I'm sorry!
|-
| {{lang|jbo|xu do se glibau}}/{{lang|jbo|jbobau}} {{Audio|jbo-xu do se glibau,jbobau.ogg|xu do se glibau/jbobau}} || is-it-true-that you is-a-speaker-of-English-language / is-a-speaker-of-Lojban-language || Do you speak English / Lojban?
|-
| {{lang|jbo|ti}}/{{lang|jbo|ta}}/{{lang|jbo|tu}} {{Audio|jbo-ti,ta,tu.ogg|ti/ta/tu}} || this/that/that-over-there || this one/that one/that yonder
|-
| {{lang|jbo|mi na jimpe}} {{Audio|jbo-mi na jimpe.ogg|mi na jimpe}} || I not-true-that understand || I don't understand
|-
| {{lang|jbo|go'i}} {{Audio|jbo-go'i.ogg|go'i}} || (the last clause) || yes, that's true
|-
| {{lang|jbo|na go'i}} {{Audio|jbo-na go'i.ogg|na go'i}} || not-true-that (the last clause) || no, that's false
|-
| {{lang|jbo|la'u ma}} {{Audio|jbo-la'u ma.ogg|la'u ma}} || being-a-quantity-of what? || How much, how many?
|-
| {{lang|jbo|ma jdima}} {{Audio|jbo-ma jdima.ogg|ma jdima}} || what is-the-price || What's the cost?
|-
| {{lang|jbo|lo vimku'a cu se stuzi ma}} <!--{{Audio|jbo-lo vimku'a ma zvati.ogg|lo vimku'a ma zvati}} --> || toilet (tail of the clause follows) is-located-at what? || Where's the toilet?
|}

=== Unique Lojbanic expressions ===
{| class="wikitable"
|-
! Lojban
| {{lang|jbo|.oi}} || {{lang|jbo|ro'o}} || {{lang|jbo|bu'o nai}} || {{lang|jbo|pei}}
|-
! Gloss
| {{lang|en|attitudinal: pain!}} || {{lang|en|in physical sense}} || {{lang|en|attitude ends}} || {{lang|en|what's your attitude?}}
|-
! Translation
| colspan="4" | {{lang|en|Are you no longer in pain?}}
|}

{| class="wikitable"
|-
! Lojban
| {{lang|jbo|mi}} || {{lang|jbo|nelci}} || {{lang|jbo|ko}}
|-
! Gloss
| {{lang|en|I}} || {{lang|en|like}} || {{lang|en|imperative "you"}}
|-
! Translation
| colspan="3" | Make it so that I like you!
|}

{| class="wikitable"
|-
! Lojban
| {{lang|jbo|lo}} || {{lang|jbo|cukta}} || {{lang|jbo|ku}} || {{lang|jbo|be'u}} || {{lang|jbo|zvati}} || {{lang|jbo|ma}}
|-
! Gloss
| {{lang|en|that which}} || {{lang|en|is book(s)}} || {{lang|en|end of noun phrase}} || {{lang|en|attitudinal: need!}} || {{lang|en|is located at}} || {{lang|en|what?}} 
|-
! Translation
| colspan="6" | I need the book! Where is it?
|}

{| class="wikitable"
|-
! Lojban
| {{lang|jbo|ko}} || {{lang|jbo|ga'i nai}} || {{lang|jbo|klama}} || {{lang|jbo|lo}} || {{lang|jbo|nenri}} || {{lang|jbo|be}} || {{lang|jbo|lo}} || {{lang|jbo|mi}} || {{lang|jbo|zdani}}
|-
! Gloss
| {{lang|en|imperative "you"}} || {{lang|en|attitudinal: meekness!}} || {{lang|en|come to}} || {{lang|en|that which}} || {{lang|en|is inside of}} || {{lang|en|[attach arguments of noun]}}|| {{lang|en|that which}} || {{lang|en|my}} || {{lang|en|is home}} 
|-
! Translation
| colspan="9" | I would be honored if you would enter my residence.
|}

{| class="wikitable"
|-
! Lojban
| {{lang|jbo|le}} || {{lang|jbo|pa}} || {{lang|jbo|nanmu}} || {{lang|jbo|cu}} || {{lang|jbo|ninmu}}
|-
! Gloss
| {{lang|en|the one in question which}} || {{lang|en|one}} || {{lang|en|is man}} || {{lang|en|tail of the clause follows}} || {{lang|en|is woman}}
|-
! Translation
| colspan="5" | The man is a woman.
|}

{| class="wikitable"
|-
! Lojban
| {{lang|jbo|se ri'a}} || {{lang|jbo|gi}} || {{lang|jbo|mi}} || {{lang|jbo|jgari}} || {{lang|jbo|lo}} || {{lang|jbo|djacu}} || {{lang|jbo|gi}} || {{lang|jbo|mi}} || {{lang|jbo|jgari}} || {{lang|jbo|lo}} || {{lang|jbo|kabri}}
|-
! Gloss
| {{lang|en|with physical effect}} || {{lang|en|of (}} || {{lang|en|I}} || {{lang|en|grasp}} || {{lang|en|that which}} || {{lang|en|is some water}} || {{lang|en|)}} || {{lang|en|I}} || {{lang|en|grasp}} || {{lang|en|that which}} || {{lang|en|is cup}}
|-
! Translation
| colspan="11" | I grasp water, since I grasp a cup.
|}

=== ''The North Wind and the Sun'' ===
A translation of ''[[w:The North Wind and the Sun]]''<!--, used in comparative [[w:International Phonetic Alphabet|IPA]] realizations-->.<ref>{{cite web|url=https://mw.lojban.org/extensions/ilmentufa/o/index.html|title='The North Wind and the Sun' in Lojban|website=mw.lojban.org}}</ref>
{{quotation|{{lang|jbo|'''la berti brife jo'u la solri'''<br /><br />ni'o la berti brife jo'u la solri pu troci lo ka cuxna lo poi me vo'a vau traji be lo ka vlipa i ca'o bo lo pa litru noi dasni lo glare kosta cu klama

.i le re mei pu simxu lo ka tugni fi lo nu lo traji be lo ka clira fa lo nu ce'u snada lo ka gasnu lo nu le litru co'u dasni le kosta cu traji lo ka vlipa

.i ba bo la berti brife co'a traji cupra lo brife i ku'i lo nu by by zenba lo ka cupra lo xo kau brife cu rinka lo nu le litru zu'e ri zenba lo ka se tagji le kosta i ba bo la berti brife co'u troci i ba bo la solri co'a glare dirce i ba zi bo le litru co'u dasni le kosta

.i se ki'u bo la berti brife cu bilga lo ka tugni fi lo nu la solri cu traji lo ka vlipa}}}}

=== A Lojbanic poem (audio) ===
* ''{{lang|jbo|{{Audio|xekri je blanu nicte.ogg|xekri je blanu nicte}}}}''

== Community ==
<!--{{Expand section|date=August 2007}}-->

=== The Internet ===
The activities of Lojban speakers are mostly via the [[w:Internet]]:
* [https://www.lojban.org/ Lojban.org]: A user-maintained multilingual site, attempting to reflect a cross section of the Lojban community outside of the LLG.
* [https://mw.lojban.org/papri/Lojban_Live_Chat Lojban chat]: Based on [[w:Telegram (messaging service)|Telegram]], [[w:Slack (software)|Slack]] messengers and the Freenode [[w:IRC]] network.
* [https://groups.google.com/forum/#!forum/lojban Lojban Mailing List]: A beginner-oriented means to talk/learn about the language.
* [https://reddit.com/r/lojban/ Lojban subreddit]: the main Lojban group in Reddit
<!--* samxarmuj/The Lojban Moo: A multi-user virtual environment, similar to the old text adventure games. A guide is given [http://www.lojban.org/tiki/tiki-index.php?page=The+Lojban+MOO&bl here].
* [http://community.livejournal.com/lojban le jbopre pe lj's Journal]: A communal Lojban blog.
* [http://tech.groups.yahoo.com/group/lojban-valsi/ lojban-valsi]: A-word-a-day mailing list on the Yahoo! Groups.-->
* [https://jbotcan.org jbotcan.org]: A community in which people may practice their Lojban, ask questions, propose Lojban-related ideas, etc.
* [[w::jbo:Main Page|uikipedias]]: The Lojban Wikipedia, where discussions may be conversed in English.

=== The Logfest ===
Gatherings of Lojbanists have been organized in the USA annually since as early as 1990, called Logfest (in Lojban: jbonunsla). It is mostly informal, taking place on a weekend, with the only scheduled activity being the annual meeting of the LLG. Those who cannot be present may still be involved via IRC. Activities may be whatever the attendees want to do: Lojban conversation, lessons, technical discussions, or socializing.

=== Population ===
<!--Disproportion in the community population is still noticeable. It is hoped among Lojbanists that more people from different cultural/linguistic backgrounds join the community in order to maintain and further complement the intended neutrality of the language.{{Citation needed|date = August 2015}}-->

The total number of Lojban speakers is unknown.

According to mw.lojban.org,<ref>{{cite web|url=https://mw.lojban.org/papri/Lojban_around_the_world|title=Lojban around the world|work=lojban.org}}</ref> places known to have concentration of Lojbanists are:
* Canada, Sweden, Russia, United States

{{As of|2007|8}}, Frappr.com shows<ref>{{cite web|url=http://www.frappr.com/lojban|title=Frap Pr|work=frappr.com}}</ref> that some people from the following countries are interested in or are enthusiasts of the language:
* Argentina, Canada, China, Estonia, France, Germany, Ireland, Mexico, The Netherlands, New Zealand, Norway, Russia, Thailand, Ukraine, United Kingdom, Venezuela.

Below are some of the notable personalities who have contributed to the development of Lojban:
* [[w:Bob LeChevalier]] (also known as {{lang|jbo|la lojbab}}): the founder and the President of the LLG.<ref name="LLG Members">{{cite web|url=https://mw.lojban.org/papri/LLG_members|title=LLG Members|work=lojban.org}}</ref>
* [[w:Robin Lee Powell]] (also known as {{lang|jbo|la camgusmis}}): the author of a novel-sized story, {{lang|jbo|la nicte cadzu}} (''Night Walkers'').
* [[w:Jorge Llambías]] (also known as {{lang|jbo|la xorxes}}): one of the most active Lojbanists, having done several translations. He is also a prominent figure on the mailing list, helping beginners with the language.
* [[w:John W. Cowan]]<!-- (aka ''jcowan'')-->: the author of ''The Complete Lojban Language''.
* [[w:Miles Forster]] (also known as {{lang|jbo|la selpa'i}}): a German Lojbanist who wrote the song ''ca pa djedi''<ref name="ca pa djedi">{{cite web|url=https://www.youtube.com/watch?v=FZomVOBE5-0|title=Ca Pa Djedi (Original Song in Lojban by selpa'i)|work=YouTube}}</ref> and made several large translations into Lojban.
* Robin Turner: a British philosopher and linguist living in Turkey, and coauthor of ''Lojban For Beginners''.
* [[w:Nick Nicholas]] (also known as ''la nitcion''): an Australian linguist, and coauthor of ''Lojban For Beginners''.<!--* Matt Arnold (aka ''la epkat''): has been contributing to the [[w:translation project]] and software development.-->

== Comparison with other logical languages ==

=== Loglan ===
{{Main| Comparison between Lojban and Loglan}}
The principal difference between Lojban and Loglan is one of lexicon. The words for Lojban were made by the same principles as those for Loglan; that is, candidate forms were chosen according to how many sounds they had in common with their equivalent in some of the most commonly spoken languages on Earth, which was then multiplied by the number of speakers of the languages with which the words had letters in common. The difference with the Lojban remake of the root words was that the weighting was updated to reflect the actual numbers of speakers for the languages. This resulted in word forms that had fewer sounds taken from English, and more sounds taken from Chinese. For instance, the Loglan word ''norma'' is equivalent to the Lojban word {{lang|jbo|cnano}} (cf. [[w:Chinese language|Chinese]] 常, [[w:pinyin]] ''cháng''), both meaning "normal".

Loglan and Lojban still have essentially the same grammars, and most of what is said in the [[w:#Grammar|Grammar]] section above holds true for Loglan as well. Most simple, declarative sentences could be translated word by
word between the two languages.

In the new phonology for Lojban, the consonant ''q'' and the vowel ''w'' were removed, and the consonant ''h'' was replaced by ''x''. The consonant ' ([[w:apostrophe]]) was added with the value of [h] in the [[w:International Phonetic Alphabet]], but its distribution is such that it can appear only [[w:intervocally]], and in discussions of the morphology and phonotactics, it is described not as a proper consonant, but a "[[w:voiceless glide]]". (This phoneme is realized as [[w:θ]] by some speakers.)

=== gua\spi ===
{{lang|mis|gua\spi}} is a descendant of Loglan but is [[w:tonal language|tonal]], developed by Jim Carter. Instead of structure words there are in {{lang|mis|Gua\spi}} six different tones. Predicates have only one syllable instead of two. Some of its characteristics, including tones, phonotactics, expressions for masses vs sets, non-existence of metalinguistic negation, etc., received criticism.<ref>{{cite web|url=https://mw.lojban.org/papri/critique_of_gua%5Cspi|title=critique of gua\spi|work=lojban.org}}</ref>

== See also ==
* [[w:Case grammar|Case grammar]]
* [[w:FrameNet|FrameNet]]
* [[w:Simplified Technical English|Simplified Technical English]]
* [[Ithkuil]]

== References ==
{{reflist|30em}}

== External links ==
* [https://mw.lojban.org/papri/Lojban_Live_Chat Lojban chats]
* [https://lojban.github.com/cll/ Reference grammar]
* [https://la-lojban.github.io/sutysisku/en/ a searchable dictionary]
** [https://la-lojban.github.io/sutysisku/ Also available in other languages]
* [https://mw.lojban.org/papri/Learning/en Learning materials]
** [https://mw.lojban.org/papri/la_karda la karda: a distilled overview of the Lojban language]
** [https://mw.lojban.org/papri/Lojban_Wave_Lessons Wave Lessons, another popular textbook]
** [http://www.memrise.com/courses/english/lojban/ Lojban courses for English speakers]
** [http://www.lojban.org/publications/cll/cll_v1.1_2016-08-26.pdf Complete Lojban language]

[[Category:Auxlangs]]
[[Category:Logical languages]]
[[Category:A posteriori]]
[[Category:Languages]]