epsi bu BY* bu-letteral

digit/number: dual ε of dual number in linear algebra; square root of 0

ε2=0 so ε is nilpotent. Acts as a number punctuation mark (separating the real and the dual parts of a dual number); normally prefixed with lau. See also ri'o, ka'o.

In definition:

lerfu
x1 (la'e zo BY/word-bu) is a letter/digit/symbol in alphabet/character-set x2 representing x3.
bu'ivla
x1 (quoted text) is a “bu letteral” of character x2 (zoi quote).
jbole'u
le1=lo1 (la'e zo BY/word-bu) is a letter/digit/symbol of Lojban’s alphabet representing le3
terjonle'u
x1 (letteral: la'e zo BY/word-bu) is a hyphen/joining letter(al) in language x2 with function in/context of use/with rules for use/with properties x3, joining prefixed unit/lexeme/morpheme/string x4 (quote) to postfixed unit/lexeme/morpheme/string x5 (quote) in construct (full word) x6 (quote)
xanle'u
l1 (la'e zo BY/word-bu) is a hand sign in character-set of sign language/system of manual communicationl2 representing l3 performed by hand(s) x1.
xanle'ule'u
xl1 (la'e zo BY/word-bu) is a fingerspelling sign in character-set of sign language/system of manual communication xl2 representing letter/digit/symbol xl3=l1 in written alphabet/character-set xl2 performed by hand(s) xl4.
buvla
x1 (quoted text) is a “bu letteral” of character x2 (zoi quote).
zi'e'a (exp!)
converts a following bu-letteral into a sumti representing the musical natural note with that name.
zi'e'e (exp!)
converts a following bu-letteral into a sumti representing the musical sharp note with that name.
zi'e'i (exp!)
converts a following bu-letteral into a sumti representing the musical double sharp note with that name.
zi'e'o (exp!)
converts a following bu-letteral into a sumti representing the musical flat note with that name.
zi'e'u (exp!)
converts a following bu-letteral into a sumti representing the musical double flat note with that name.
cmavrbu
x1 is the selma'o "BU".
ga'elfu
x1 (la'e zo BY/word-bu) is a capital/capitalised/upper-shift letter/digit/symbol in alphabet/character-set x2 representing x3.
ivla
x1 (brivla/selbri) is used by place x2 (number/me'o+FA+bu) being filled with (a description of / symbol for) x3, in the usage of x4, according to rule(s) x5.
to'alfu
x1 (la'e zo BY/word-bu) is a lower-case letter/digit/symbol in alphabet/character-set x2 representing x3.
ga'e zei lerfu
x1 (la'e zo BY/word-bu) is a capital/capitalised/upper-shift letter/digit/symbol in alphabet/character-set x2 representing x3.
to'a zei lerfu
x1 (la'e zo BY/word-bu) is a lower-case letter/digit/symbol in alphabet/character-set x2 representing x3.

In notes:

depybu'i
x1 is a period/dot/full stop (character “.”).
mocle'u
x1 is a period (punctuation mark)
tolkanxe
k1 is an alternative denial (nand/Scheffer stroke ↑), stating that k2 (du'u) and k3 (du'u) are not both true.
tolvlina
v1 is a joint denial (nor/Peirce's arrow ↓), stating that neither v2 (du'u) nor v3 (du'u) are true.
bunxa
x1 is a x2osity, a x2onger, an absolute x2 I tell you (augmentative)
lai'a (exp!)
text scope alphabet specifier. Sets the alphabet used for spelling until changed.
li'ei
arbitrary character string or irregular number
tai'u
(something which approximately has) the abstract shape of the symbol for the previous construct
uoi (exp!)
discursive: marks question construct as allowing filling it with answers that are non-referential constructs only
burfava
x1 is a part of Lojban text representing rule 'lerfu-word' according to the first edition of the book 'The Complete Lojban Language'.
depsnce
x1 is a glottal stop sound produced by x2.
du'u bu
the last sumti having a {du'u}-abstraction at its topmost level inside
gi bu
pro-sumti: in the second half of a sumti forethought connective expression, refers to the first half.
ka bu
the last sumti having a {ka}-abstraction at its topmost level inside
lu bu
pro-sumti: refers to the last complete {lu}-quotation
ni bu
the last sumti having a {ni}-abstraction at its topmost level inside
nu bu
pro-sumti: refers to the last complete sumti that started with a nu-abstraction
xy.bu
letteral for "h" character
y'y.bu
letteral for "h" character