On grammatical class:

le
non-veridical descriptor: the one(s) described as ...
le'e
non-veridical descriptor: the stereotype of those described as ...
le'i
non-veridical descriptor: the set of those described as ..., treated as a set.
lei
non-veridical descriptor: the mass of individual(s) described as ...
lo
descriptor: the one, which (is / does) ... / those, which (are / do) ...
lo'e
veridical descriptor: the typical one(s) who really is(are) ...
lo'i
veridical descriptor: the set of those that really are ..., treated as a set.
loi
veridical descriptor: the mass of individual(s) that is(are) ...
dau'u
variable identifier article: refer to the referents of the variable having the following predicate as its name; such a variable may be implicitly bound by {PA broda} or {LE broda} phrases; if no such variable has been previously bound, the referents are left to the context to determine; the referents are not claimed to actually satisfy the predicate after which the variable is named.
ji'ai
job descriptor: the one which does …
kai'i
Property relativizing determiner. {kai'i} introduces a predicate whose first argument slot becomes filled by the property made by taking the bridi in which this {kai'i} appears and putting {ce'u} into the argument slot in which this {kai'i} argument was located. Put formally, "kai'i brodi cu brodu" = "lo ka ce'u brodu cu brodi". Additionally, a {kai'i} term has a rightward logical scope, like quantifiers and adverbials.
le'ei
article: "the thing(s) I have in mind and which I believe appear(s) to you to be…"
lei'e
anaphoric mass gadri: start a description of a mass/group/constituency mentioned earlier in the text/conversation, viewed as a whole
lei'i
demonstrative mass gadri; start a definite description that refers to a mass/group/constituency in the shared frame-of-reference, viewed as a whole
lo'au
presuppositional definite article: the …; the thing(s) which …
loi'a
generic essentialistic article: «loi'a broda cu brode» = a broda typically is/does brode; being/doing brode is a typical trait of broda-hood.
loi'e
generalized mass gadri; start a description of a generalization of some mass/group/constituency viewed as a whole
loi'i
essentialist mass gadri; start a description of an essential characterization of some mass/group/constituency viewed as a whole
lo'o'o
plural logic maximum-scope descriptor: those who individually or collectively are ...
ly'ei
exophoric article: the … I have in mind (identity not necessarily ascertainable from the context).
me'ei
Article for abstract predicate sumti. Turns a selbri into an abstraction with all open places filled by {ce'u}.
moi'oi
interrogative mass gadri: "which group of..."; viewed and counted as a group
mo'oi
interrogative gadri: "which"
nei'i
strict essentialistic article: «nei'i broda cu brode» = being a broda necessarily entails being/doing brode.
ri'oi
the latest aforementioned...; refers back to the most recently mentioned thing(s) that satisfies the x1 of the following predicate
ti'oi
demonstrative article: the … which I'm currently pointing to or am otherwise attracting your attention to.
xai'i
Property article: converts the following predicate into an property sumti (whose open slot is the x1 of the predicate).
zo'ai
quotes a selbri.
zy'oi
exophoric article: some certain thing(s) which… (identity ascertainable from the context).
la dontu'u
YouTube
ledo
possessive/associative descriptor: the one(s) described as, of yours.
le jaica
description: marks description extracting the time tense place of the description bridi.
le jaigau
description: marks description extracting the agentive place of the description selbri.
le jaivi
description: marks description extracting the location place of the description bridi.
leko'a
possessive/associative descriptor: the one(s) described as, of it-1's.
lemi
possessive/associative descriptor: the one(s) described as, of mine.
lenu
specific event descriptor: contraction of {le nu} and identical in meaning.
leta
possessive/associative descriptor: nearby demonstrative possessive; cannot use for 'THAT ...'.
leti
possessive/associative descriptor: immediate demonstrative possessive; cannot use for 'THIS ...'.
letu
possessive/associative descriptor: distant demonstrative possessive.
leva
located descriptor: descriptive that-there (non-demonstrative).
levi
located descriptor: descriptive this-here (non-demonstrative).
levu
located descriptor: descriptive that-yonder (non-demonstrative).
lonu
event descriptor: contraction of {lo nu} and identical in meaning.

In definition:

tu'a
extracts a concrete sumti from an unspecified abstraction; equivalent to le nu/su'u [sumti] co'e.
voi
non-veridical restrictive clause used to form complicated le-like descriptions using "ke'a".
jai'i
takes NU or LE NU, turns into sumtcita: clarifies the semantic NU-type of the current bridi.
le'au
Start property which sets the meaning of {le} in the surrounding text.
cmavrle
x1 is the selma'o "LE".

In notes:

bongu
x1 is a/the bone/ivory [body-part], performing function x2 in body of x3; [metaphor: calcium].
gadri
x1 is an article/descriptor labelling description x2 (text) in language x3 with semantics x4.
fegmliba'u
m1=f1=b1 grumbles with sound b2 at f2 because of f3 (action/state/property).
molgle
g1=m2 performs oral sex on g2.
drisu
x1 is medicine used to treat illness/disease x2 ({bilma}/ka/state) via mechanism of action x3 (event) at dosage x4 (ka))
likse
x1 is a x2y, a x2boo, a x2ums (diminutive)
gi'ei
afterthought abstraction wrapper
lai'e
Named reference. It converts a sumti into another sumti. The converted sumti points to the referent the name of which is the referent of the unconverted sumti.
oi'i
sentence link/continuation; continuing sentences on same topic with the observative sumti filled with {la'e} {di'u}
ru'oi
quantifier: "all" (as opposed to "every")
aigne
x1 is an eigenvalue (or zero) of linear transformation/square matrix x2, associated with/'owning' all vectors in generalized eigenspace x3 (implies neither nondegeneracy nor degeneracy; default includes the zero vector) with 'eigenspace-generalization' power/exponent x4 (typically and probably by cultural default will be 1), with algebraic multiplicity (of eigenvalue) x5
baicmvo
x1 (usually Lojban word) is the BAI cmavo corresponding to root word/gismu x2.
endi
x1 (digit string/byte, storage system, convention) has endianness x2 ("ce'o" sequence of numbers (li); description (ka?)); x1 is x2-endian.
ezli
x1 is a place erased from the place structure of the parent predicate according to the rules x2 (property of all the places of the parent predicate including the one filled with x1)
le'elkai
x1 is/are the thing(s) described/named with property x2 by the speaker, who thinks this is contextually enough information for the listener to understand what are x1's referent(s)
xa zei sumtika
x1 is a part of Lojban text representing rule 'sumti-6' according to the first edition of the book 'The Complete Lojban Language'.
ka'urkuarka
k1 is a quark with flavor k2.