bangu -ban-bau- gismu

x1 is a/the language/dialect used by x2 to express/communicate x3 (si'o/du'u, not quote).

Also tongue. See also tance, cusku, ve tavla, valsi, gerna, jufra, natmi, slaka.

In definition:

bau
bangu modal, 1st place in language ...
sebau
bangu modal, 2nd place (speakers) in language of speakers ...
tebau
bangu modal, 3rd place (expression) language expressing ...

In notes:

cusku
x1 (agent) expresses/says x2 (sedu'u/text/lu'e concept) for audience x3 via expressive medium x4.
fanva
x1 translates text/utterance x2 to language x3 from language x4 with translation result x5.
gerna
x1 is the grammar/rules/defining form of language x2 for structure/text x3.
jufra
x1 (text) is a sentence/statement about x2 [topic/subject/predicate/focus] in language x3.
lojbo
x1 reflects [Loglandic]/Lojbanic language/culture/nationality/community in aspect x2.
natmi
x1 is a nation/ethnic group of peoples x2; [people sharing a history/culture].
slaka
x1 is a syllable in language x2.
tance
x1 is a/the tongue [body-part] of x2; (metaphor: similar to nazbi, tamji, degji).
tavla
x1 talks/speaks to x2 about subject x3 in language x4.
valsi
x1 is a word meaning/causing x2 in language x3; (adjective: x1 is lexical/verbal).
banra'a
s1 pertains to language of s2=b2
baupli
x1 uses language x2 for purpose x3.
begbau
be1=ba1 is the Bengali language used by ba2 to communicate ba3 (si'o/du'u, not quote).
bidbau
x1=b1 is the Indonesian language used by b2 to express/communicate b3 (si'o/du'u, not quote).
djobau
m1=b1 is the Saudi Arabic language used by b2 to express/communicate b3 (si'o/du'u, not quote).
dotybau
d1=b1 is the German used by b2 to express/communicate b3 (si'o/du'u, not quote).
fasybau
f1=b1 is the French language used by b2 to express/communicate b3 (si'o/du'u, not quote).
getybau
g1=b1 is the Argentinian Spanish language used by b2 to express/communicate b3 (si'o/du'u, not quote)
glibau
g1=b1 is the English language used by b2 to express/communicate b3 (si'o/du'u, not quote).
jugbau
j1=b1 is the Chinese-Mandarin language, used by b2 to communicate b3 (si'o/du'u, not quote)
kadnyfasybau
k1=f1=b1 is the Canadian French language used by b2 to express/communicate b3 (si'o/du'u, not quote).
kadnyglibau
k1=g1=b1 is the Canadian English language used by b2 to express/communicate b3 (si'o/du'u, not quote).
kisybau
k1=b1 is the Pakistani Urdu language used by b2 to communicate b3 (si'o/du'u, not quote)
kisyglibau
k1=g1=b1 is the Pakistani English language used by b2 to express/communicate b3 (si'o/du'u, not quote).
lojbau
b1 is the loglan/Loglan/logic language used by community b2 to express ideas b3.
merbau
m1=b1 is the American English used by b2 to express/communicate b3 (si'o/du'u, not quote).
mexybau
m1=b1 is the Mexican Spanish language used by b2 to express/communicate b3 (si'o/du'u, not quote).
misrybau
m1=b1 is the Egyptian Arabic language used by b2 to express/communicate b3 (si'o/du'u, not quote).
nanfi'oglibau
x1 is the South African English language used by x2 to express/communicate x3 (si'o/du'u, not quote).
pa'arbau
b1 is Esperanto.
ponbau
p1=b1 is the Japanese language used by b2 to express/communicate b3 (si'o/du'u, not quote).
potybau
p1=b1 is the Portuguese language used by b2 to express/communicate b3 (si'o/du'u, not quote).
rabybau
r1=b1 is the Arabic language used by b2 to express/communicate b3 (si'o/du'u, not quote).
razbau
br1=ba1 is the Brazilian Portuguese language used by ba2 to express/communicate ba3 (si'o/du'u, not quote)
rukybau
r1=b1 is the Russian language used by b2 to express/communicate b3 (si'o/du'u, not quote).
runbau
r1=b1 is an artificial/constructed language.
sanbau
s1=b1 is the Spanish language used by b2 to express/communicate b3 (si'o/du'u, not quote)
selbau
x2=b1 is a language/dialect used by x1=b2 to express/communicate x3=b3 (si'o/du'u, not quote).
sralybau
s1=b1 is the Australian English language used by b2 to express/communicate b3 (si'o/du'u, not quote).
tecyvla
v1 is a term/jargon (from a specialised area of knowledge) meaning v2=s2 in language v3.
terbau
x3=b1 is a language/dialect used by x2=b2 to express/communicate x1=b3 (si'o/du'u, not quote).
vurbau
v1=b1 is the Ukrainian language used by b2 to express/communicate b3 (si'o/du'u, not quote).
xanbau
b1 is a Signed Language used by x2=b2 to express/communicate b3 (si'o/du'u, not quote).
xinbau
x1=b1 is the Hindi language used by b2 to communicate b3
xinglibau
x1=g1=b1 is the Indian English language used by b2 to express/communicate b3 (si'o/du'u, not quote).
xurbau
x1=b1 is the Urdu language used by b2 to express/communicate b3 (si'o/du'u, not quote).
bangrtalia
x1 is the Italian language used by x2 to express/communicate x3 (si'o/du'u, not quote).
bangrvietnama
x1 is the Vietnamese language used by x2 to express/communicate x3 (si'o/du'u, not quote).
bangrxangu
x1 is the Korean language used by x2 to express/communicate x3 (si'o/du'u, not quote).
gliban
The English language.