On grammatical class:

ke
start grouping of tanru, etc; ... type of ... ; overrides normal tanru left grouping.
fei'u
Prefix division by following unit selbri
ke'oi
reverses modification order of contained tanru (does not affect lujvo).
pi'ai
Prefix multiplication of unit selbri

In definition:

brapagjvo
x1 (text) is a lujvo with meaning x2 and arguments x3, and which is constructed from tanru/veljvo x4 such that at least one element of the veljvo is ultimately not a cmavo (including "{zei}", "{ke}"/"{ke'e}", "{bo}", etc.), gismu, or rafsi of such cmavo or gismu.
cmapagjvo
x1 (text) is a lujvo with meaning x2 and arguments x3, and which is constructed from tanru/veljvo x4 such that each element of the veljvo is ultimately only a cmavo (including "{zei}", "{ke}"/"{ke'e}", "{bo}", etc.), gismu, or rafsi of such cmavo or gismu.
banxekuku
x1 is the language with ISO 639-3 code “hkk” (Hunjara-Kaina Ke).
banzumugu
x1 is the language with ISO 639-3 code “zmg” (Marti Ke).
cmavrke
x1 is the selma'o "KE".

In notes:

bo
short scope joiner; joins various constructs with shortest scope and right grouping.
jbojevysofkemsuzgugje'ake'eborkemfaipaltrusi'oke'ekemgubyseltru
x1 reflects Lojbanic Soviet Federative Socialist Republic culture/nationality/community in aspect x2
kelkubli
ku1 is a die/are dice for game x2 with surfaces/sides ku3 (default 6).
mipyzgakemsamtci
t1=z1 is a spyware installed on computer(s) including s1 which spies on z2 (victim(s)) under conditions z4.
rajroksfe
s1=rs1 is a vertical rock face / rock surface of rock / mountain rs2 on side rs3 with edges rs4, vertical in reference frame/gravity s2.
ti'orkemsamtci
t1 is a shader on computer(s) including s1.
xlakemsamtci
t1=xl1 is malware (malicious software) on computer(s) including s1, which is/does bad for/harms xl2 according to standard xl3.
xluzerma'esazri
x1=s1 drives vehicle x2=m1 illegally according to people/culture/judges/prosecutor x3=z2 under influence of x4=xl1 (agent/property/substance) which affects driving with effect x5=xl2.
ce'oi
argument list separator: acts as a comma between arguments in an argument list supplied to a function.
brinefa
x1 is a part of Lojban text representing rule 'bridi-tail' according to the first edition of the book 'The Complete Lojban Language'.
funseia
x1 is a part of Lojban text representing rule 'operator' according to the first edition of the book 'The Complete Lojban Language'.
geknimi
x1 is a part of Lojban text representing rule 'gek-sentence' according to the first edition of the book 'The Complete Lojban Language'.
lamji'utka
x1 is directly or indirectly touching x2 via intermediate steps x3 (ce'o list); x1 and x2 belong to the same connected component.
mektika
x1 is a part of Lojban text representing rule 'operand' according to the first edition of the book 'The Complete Lojban Language'.
vanlamigu
x1 is sunlight reflected by a pool of water in the evening
pa zei sumtika
x1 is a part of Lojban text representing rule 'sumti-1' according to the first edition of the book 'The Complete Lojban Language'.
re zei funseia
x1 is a part of Lojban text representing rule 'operator-2' according to the first edition of the book 'The Complete Lojban Language'.
re zei taulka
x1 is a part of Lojban text representing rule 'tanru-unit-2' according to the first edition of the book 'The Complete Lojban Language'.
vo zei zgabube
x1 is a part of Lojban text representing rule 'selbri-4' according to the first edition of the book 'The Complete Lojban Language'.