x_{1} (ka) is the relation of predicate x_{2} (du'u), which has arguments x_{3} (sequence of sumti).

In Lojban, for example, "lo ka ce'u prami ce'u cu selbri lo du'u mi prami do ku mi ce'o do". In the mathematical notation P(x, y, z) for a predicate, the relation P is the selbri. Note that x_{1} is not textual, even though Lojbanists informally tend to call a word or phrase "the selbri" of an utterance. For this usage see selbrisni.

- ba
- time tense relation/direction: will [selbri]; after [sumti]; default future tense.
- be
- sumti link to attach sumti (default x
_{2}) to a selbri; used in descriptions. - bei
- separates multiple linked sumti within a selbri; used in descriptions.
- bu'a
- logically quantified predicate variable: some selbri 1.
- bu'e
- logically quantified predicate variable: some selbri 2.
- bu'i
- logically quantified predicate variable: some selbri 3.
- ca
- time tense relation/direction: is [selbri]; during/simultaneous with [sumti]; present tense.
- cei
- selbri variable assignment; assigns broda series pro-bridi to a selbri.
- cu
- elidable marker: separates selbri from preceding sumti, allows preceding terminator elision.
- cu'o
- convert number to probability selbri; event x
_{1}has probability (n) of occurring under cond. x_{2}. - du
- identity selbri; = sign; x
_{1}identically equals x_{2}, x_{3}, etc.; attached sumti refer to same thing. - fe'u
- elidable terminator: end nonce conversion of selbri to modal; usually elidable.
- fi'o
- convert selbri to nonce modal/sumti tag.
- la
- name descriptor: the one(s) called ... ; takes name or selbri description.
- la'i
- name descriptor: the set of those named ... ; takes name or selbri description.
- lai
- name descriptor: the mass of individual(s) named ... ; takes name or selbri description.
- me
- convert sumti to selbri/tanru element; x
_{1}is specific to [sumti] in aspect x_{2}. - mei
- convert number to cardinality selbri; x
_{1}is a mass formed from a set x_{2}of n members, one or more of which is/are x_{3}, measured relative to the set x_{4}. - me'u
- elidable terminator: end sumti that was converted to selbri; usually elidable.
- mo
- pro-bridi: bridi/selbri/brivla question.
- moi
- convert number to ordinal selbri; x
_{1}is (n)th member of set x_{2}ordered by rule x_{3}. - na'u
- convert selbri to mex operator; used to create less-used operators using fu'ivla, lujvo, etc.
- ni'e
- convert selbri to mex operand; used to create new non-numerical quantifiers; e.g. "herd" of oxen.
- nu'a
- convert mathematical expression (mex) operator to a selbri/tanru component.
- pu
- time tense relation/direction: did [selbri]; before/prior to [sumti]; default past tense.
- si'e
- convert number to portion selbri; x
_{1}is an (n)th portion of mass/totality x_{2}; (cf. gunma). - va'e
- convert number to scalar selbri; x
_{1}is at (n)th position on scale x_{2}. - zi'o
- pro-sumti: fills a sumti place, deleting it from selbri place structure;changes selbri semantics.
- bimei
*(comp!)* - quantifier selbri: convert 8 to cardinal selbri; x
_{1}is a set with the octet of members x_{2}. - bimoi
*(comp!)* - quantified selbri: convert 8 to ordinal selbri; x
_{1}is eighth among x_{2}ordered by rule x_{3}. - cimei
*(comp!)* - quantifier selbri: convert 3 to cardinal selbri; x
_{1}is a set with the trio of members x_{2}. - cimoi
*(comp!)* - quantified selbri: convert 3 to ordinal selbri; x
_{1}is third among x_{2}ordered by rule x_{3}. - da'amei
*(comp!)* - quantifier selbri: convert all but one to cardinal selbri; x
_{1}is a set with all but one members x_{2}. - da'amoi
*(comp!)* - quantified selbri: converts all-but-(1) to ordinal selbri; x
_{1}is penultimate among x_{2}by rule x_{3}. - da'aremoi
*(comp!)* - quantified selbri: converts all-but-2 to ordinal selbri; x
_{1}is antepenult. among x_{2}by rule x_{3}. - du'emei
*(comp!)* - quantifier selbri: convert too many to cardinal selbri; x
_{1}is a set with too many members x_{2}. - le jaigau
*(comp!)* - description: marks description extracting the agentive place of the description selbri.
- mumei
*(comp!)* - quantifier selbri: convert 5 to cardinal selbri; x
_{1}is a set with the quintet of members x_{2}. - mumoi
*(comp!)* - quantified selbri: convert 5 to ordinal selbri; x
_{1}is fifth among x_{2}ordered by rule x_{3}. - nago'i
*(comp!)* - selbri: repeats preceding bridi while denying it as false; pro-assign values are unchanged.
- pamei
*(comp!)* - quantified selbri: convert 1 to cardinal selbri; x
_{1}is a set with single/sole/only member x_{2}. - pamoi
*(comp!)* - quantified selbri: convert 1 to ordinal selbri; x
_{1}is first among x_{2}ordered by rule x_{3}. - panomei
*(comp!)* - quantifier selbri: convert 10 to cardinal selbri; x
_{1}is a set with the decade of members x_{2}. - panomoi
*(comp!)* - quantified selbri: convert 10 to ordinal selbri; x
_{1}is tenth among x_{2}ordered by rule x_{3}. - panonomei
*(comp!)* - quantifier selbri: convert 100 to cardinal selbri; x
_{1}is a set with the century of members x_{2}. - paremei
*(comp!)* - quantified selbri: convert 12 to cardinal selbri; x
_{1}is a set with a dozen members x_{2}. - pimucu'o
*(comp!)* - quantified selbri: convert .5 to probability selbri; event x
_{1}has a 50/50 chance under cond. x_{2}. - piresi'e
*(comp!)* - quantified selbri: convert .2 = 1/5 to portion selbri; x
_{1}is 1/5 of mass/totality x_{2}. - pirosi'e
*(comp!)* - quantified selbri: converts all-of to portion selbri; x
_{1}is the whole portion of mass x_{2}. - raumei
*(comp!)* - quantified selbri: converts enough to cardinal; x
_{1}is a set with members x_{2}, enough by std. x_{3}. - raumoi
*(comp!)* - quantified selbri: converts enough to ordinal; x
_{1}is enoughth among x_{2}, order rule x_{3}. - remei
*(comp!)* - quantified selbri: convert 2 to cardinal selbri; x
_{1}is a set with the pair of members x_{2}. - remoi
*(comp!)* - quantified selbri: convert 2 to ordinal selbri; x
_{1}is second among x_{2}ordered by rule x_{3}. - renomei
*(comp!)* - quantifier selbri: convert 20 to cardinal selbri; x
_{1}is a set with the score of members x_{2}. - romoi
*(comp!)* - quantified selbri: is final among; convert all to ordinal selbri; x
_{1}is last among x_{2}, rule x_{3}. - setese
*(comp!)* - complicated selbri conversion: exchange x2 and x3
- so'imei
*(comp!)* - quantified selbri: convert many to cardinal; x
_{1}is a set with many members x_{2}of total set x_{3}. - somoi
*(comp!)* - quantified selbri: convert 9 to ordinal selbri; x
_{1}is ninth among x_{2}ordered by rule x_{3}. - su'oremei
*(comp!)* - quantified selbri: convert at least 2 to cardinal selbri; x
_{1}is a set with plural membership x_{2}. - su'oremoi
*(comp!)* - quantified selbri: convert at least 2 to ordinal selbri; x
_{1}is at-least-2nd among x_{2}by rule x_{3}. - tesete
*(comp!)* - complicated selbri conversion: exchange x2 and x3
- vomoi
*(comp!)* - quantified selbri: convert 4 to ordinal selbri; x
_{1}is fourth among x_{2}ordered by rule x_{3}. - xamoi
*(comp!)* - quantified selbri: convert 6 to ordinal selbri; x
_{1}is sixth among x_{2}ordered by rule x_{3}. - zemoi
*(comp!)* - quantified selbri: convert 7 to ordinal selbri; x
_{1}is seventh among x_{2}ordered by rule x_{3}. - selbricu'i
- x
_{1}is/are a word/words potential for using as selbri - selbritcita
- x
_{1}is a selbri tag showing information x_{2} - sumbi'o
- x
_{1}fills selbri x_{2}in terbri x_{3}. - terbrikazmi
- x
_{1}(li) is the arity of predicate relationship x_{2}; selbri (not restricted to Lojban) is x_{1}-adic; x_{2}is a predicate with x_{1}(-many) sumti/argument slots that may be filled. - nutko
- x
_{1}is the language/sublanguage that uses no apparent terbri/selbri distinction and is used by x_{2}to express ideas (not text) x_{3}. - bo'ei
*(exp!)* - single Lojban-word name quote, turns to selbri-unit: "x
_{1}is that which has this name" - bu'ai
*(exp!)* - abstractor: abstractor to create logically quantified selbri variable to be used in predicate logic of third or higher order.
- cau'e
*(exp!)* - elliptical/unspecified scalar modifier: "maybe, maybe not", modifies next selbri-unit or tag
- cei'e
*(exp!)* - define following selbri with sentence or tu'e...tu'u clause
- ci'au
*(exp!)* - attitudinal-indicator-to-selbri conversion: x
_{1}feels the indicated emotion toward/about x_{2}. - ci'au'u
*(exp!)* - elidable terminator: end conversion of attitudinal indicator to selbri; elidable except before further attitudinals.
- co'au'e
*(exp!)* - trivial selbri inversion: does not invert tanru (seltau first/left, tertau second/right).
- cu'oi'e
*(exp!)* - convert number to statistical odds selbri; event x
_{1}(nu) has statistical odds (n) of occurring (versus not occuring) under conditions x_{2}. - fei'u
*(exp!)* - Prefix division by following unit selbri
- foi'e
- GOI attachment modifier: allows a cmavo of selma'o GOI (which must follow immediately) to be attached to a selbri
- jai'a
- grammatically converts LAhE to SE; semantically the result tags the x
_{1}of the selbri as being LAhE the supplied x_{1}. Can be converted to other than x_{1}with SE. - jo'ai
*(exp!)* - convert a selbri tag followed by a tanru unit to a tanru unit; differently from {jai}, it does not change the first place of the tanru unit.
- ke'e'ai
- Attaches all of the following words to the next explicitly mentioned sumti as seltau of that sumti or selbri which is explicitly marked with "cu" (under left-grouping by default).
- ki'ai
*(exp!)* - Converts following selbri, cmevla, or zoi-quote into a nonce interjection/attitudinal.
- ku'ai'i
*(exp!)* - empty/vacuous selbri
- lu'oi
*(exp!)* - selbri conversion: abstracts out a member of x
_{1}(set/group), moves old x_{1}to the fai place - me'ei
*(exp!)* - Article for abstract predicate sumti. Turns a selbri into an abstraction with all open places filled by {ce'u}.
- mei'e
*(exp!)* - Accepts any number of sumti and turns them into a selbri-unit that means "x
_{1}is among the referents of these sumti". - mei'i
*(exp!)* - convert number to cardinality selbri: x
_{1}is/are [number] in number; there is/are [number] things among x_{1}. - mei'o
- Elidable terminator for selma'o MEIhE (which turns any number of sumti into a selbri-unit)
- mei'u
*(exp!)* - converts sumti into selbri: x
_{1}is [that sumti]'s, among x_{2}, by relationship x_{3}(binary ka). - mu'oi
- delimited non-Lojban selbri-unit
- noi'a
*(exp!)* - incidental/non-restrictive adverbial: converts selbri to bridi adverbial term. The first place of the converted selbri is claimed to be such that the outer bridi satisfies it, and the outer bridi is claimed. {broda noi'a brode} means {lo nu broda ku goi ko'a cu fasnu .i ko'a brode}.
- no'oi
*(exp!)* - Selbri incidental relative clause; attaches to a selbri with the ke'a being 'me'ei the attached selbri'
- pi'ai
*(exp!)* - Prefix multiplication of unit selbri
- poi'a
*(exp!)* - restrictive adverbial: converts selbri to bridi adverbial term. The first place of the converted selbri is claimed to occur in conjunction with the outer bridi. {broda poi'a brode} means {lo nu broda cu fasnu gi'e brode}.
- poi'o'a
*(exp!)* - restrictive first place adverbial: converts selbri to bridi adverbial term. The outer bridi is claimed to occur together with the event of the first place of that bridi satisfying the converted selbri. {broda poi'o'a brode} means {broda fau lo nu vo'a brode}.
- po'oi
*(exp!)* - selbri restrictive relative clause; attaches to a selbri with the ke'a being "me'ei the attached-selbri"
- rai'a
*(exp!)* - selbri modifier: restrict the referents of the x1 slot to those belonging to the current domain of discourse, those being relevant to the present context.
- re'au'e
*(exp!)* - the trivial selbri conversion - identity permutation of terbri
- sau'e
*(exp!)* - quotes a nonce Lojban word (an onomatopoeia), turns it into selbri unit meaning "x
_{1}makes a sound like (quoted word)". - se'e'i
*(exp!)* - placed before a selbri, merges x1 and x2 places.
- sei'o
- selbri terminator
- se'o'e
*(exp!)* - elliptical/generic/unspecific/vague selbri conversion
- se'u'o
*(exp!)* - selbri conversion question
- soi'a
*(exp!)* - subordinating adverbial: converts selbri to bridi adverbial term. The bridi is claimed to satisfy the first place of the converted selbri, but is not itself claimed to occur. {broda soi'a brode} means {lo nu broda cu brode}
- te'ai
*(exp!)* - Exponentiation of unit selbri
- te'e'a
*(exp!)* - 2-Merge Conversion: placed immediately before a selbri, merges x
_{2}and x_{3}places. - te'e'i
*(exp!)* - placed before a selbri, merges x1 and x3 places (with the new x1 being equivalent to the result of this merging).
- tu'ei
*(exp!)* - makes a new selbri, the first two places of which are to be filled with sumti from the first two abstraction places of the selbri following this word
- ve'e'a
*(exp!)* - 2-Merge Conversion: placed immediately before a selbri, merges x
_{2}and x_{4}places. - ve'e'i
*(exp!)* - placed before a selbri, merges x1 and x4 places.
- ve'e'u
*(exp!)* - 2-Merge Conversion: placed immediately before a selbri, merges x
_{3}and x_{4}places. - xe'e'a
*(exp!)* - 2-Merge Conversion: placed immediately before a selbri, merges x
_{2}and x_{n}places. - xe'e'i
*(exp!)* - placed before a selbri, merges x1 and x5 places.
- xe'e'o
*(exp!)* - 2-Merge Conversion: placed immediately before a selbri, merges x
_{4}and x_{5}places. - xe'e'u
*(exp!)* - 2-Merge Conversion: placed immediately before a selbri, merges x
_{3}and x_{5}places. - xo'i
- Extracts selbri from a tag, inverse of fi'o
- ze'ai'e
*(exp!)* - selbri conversion: permute all terbri so as to be exactly backward.
- ze'e'a
*(exp!)* - n-Merge Conversion: placed immediately before a selbri, merges x
_{2}and all x_{a}places. - ze'e'au
*(exp!)* - n-Merge Conversion: placed immediately before a selbri, merges all x
_{a}places. - ze'e'e
*(exp!)* - n-Merge Conversion: placed immediately before a selbri, merges x
_{5}and all x_{a}places. - ze'e'i
*(exp!)* - n-Merge Conversion: placed immediately before a selbri, merges x
_{1}and all x_{a}places. - ze'e'o
*(exp!)* - n-Merge Conversion: placed immediately before a selbri, merges x
_{4}and all x_{a}places. - ze'e'u
*(exp!)* - n-Merge Conversion: placed immediately before a selbri, merges x
_{3}and all x_{a}places. - ze'oi
*(exp!)* - converts following word to selbri-unit: "x
_{1}is related to the meaning of this word in aspect x_{2}" - zi'au
*(exp!)* - nonexistent/undefining it; the selbri is not applicable when the other terbri are filled in the manner in which they are in this utterance/bridi.
- zo'ai
*(exp!)* - quotes a selbri.
- ivla
- x
_{1}(brivla/selbri) is used by place x_{2}(number/me'o+FA+bu) being filled with (a description of / symbol for) x_{3}, in the usage of x_{4}, according to rule(s) x_{5}. - onga
- x
_{1}(text) is written in a dialect where selbri in every bridi-tail is assumed to have {so'o'o'oi} applied to it - trajije
- x
_{1}=traji_{1}is superlative in property x_{2}=traji_{2}, the x_{3}=traji_{3}extrema (ka; default: ka zmadu), among set/range x_{4}=traji_{4}, and -- moreover -- (there exists at least one member of) the x_{5}^{2}th (li; must be 1 or 2) argument [see note] of this selbri (which) actually has/is/attains said property x_{2}according to standard x_{6}. - zmaduje
- x
_{1}is more than/greater than/exceeds x_{2}in property x_{3}(ka) and the x_{4}th (li; 1 or 2) argument of this selbri actually has/is/expresses/attains property x_{3}according to x_{5}.

- lo
- descriptor: the one, which (is / does) ... / those, which (are / do) ...
- brisni
- x
_{1}(text) represents a predicate relationship with relation represented by x_{2}(text) among referents of x_{3}that are arguments (sequence/set of texts). - brivla
- v
_{1}is a morphologically defined predicate word signifying relation b_{2}in language v_{3}. - pavmompazy'utka'au'ypanzi
- x
_{1}is any child of the first child of the first child of ... the first child of x_{2}, where the graph geodesic through the ancestorship-directed family tree from x_{1}to x_{2}is of length (x_{3) + 1}(li; x_{3}must be a nonnegative integer or positive infinity), and where "first" is according to (partial) ordering rule x_{4}(default: chronological order of birth per successive generation within the given lineage; other restrictions on legitimacy etc. may be specified here as well). - pavmompazy'utka'ypanzi
- x
_{1}is any child of the first child of the first child of ... the first child of x_{2}, with intermediate steps x_{3}(complete ordered list, "ce'o"; should include the relevant parent of x_{1}), where "first" is according to (partial) ordering rule x_{4}(default: chronological order of birth per successive generation within the given lineage; other restrictions on legitimacy etc. may be specified here as well). - selbrisle
- x
_{1}is a tanru unit. - selbrisni
- x
_{1}(text) represents relation for a predicate relationship represented by x_{2}(text) among referents of x_{3}that are arguments (sequence/set of texts). - suzyterki'i
- x
_{1}=k_{3}is the relationship between x_{2}=k_{1}, x_{3}=k_{2}, x_{3}...; x_{1}is a property of x_{2}. - terbrisni
- x
_{1}(sequence/set of texts) are arguments, the referents of which are related by relation represented by x_{2}(text) for a predicate relationship represented by x_{3}(text). - bei'e
- Multiple sumti link; open-ended sumti-linking.
- ce'oi
*(exp!)* - argument list separator: acts as a comma between arguments in an argument list supplied to a function.
- dau'a
*(exp!)* - gafyzmico: Reset all default specifications of immediately previous word to official definition specifications hereinafter (permanently)
- de'au
*(exp!)* - gafyzmico: Cancellation (permanent) of all defaults in immediately previous word
- de'oi
*(exp!)* - Cancellation (instant-/usage-wise; temporary) of all defaults in immediately previous word
- doi'a
*(exp!)* - gafyzmico: Reset all default specification of the immediately previous word to their respective discourse-external/official definition specifications for this instance/usage only.
- jo'au
*(exp!)* - change version/dialect of parser
- kau'u
- Predicate to variable-binding binary quantifier. The first slot of the predicate must be a property.
- ke'ai
- Toggles to no grouping
- ke'ei
- Toggles to right grouping of tanru/lujvo.
- ke'e'u
- Locks tanru modification order reversal (does not affect lujvo). {ke'e'unai} restores regular order
- pei'a
*(exp!)* - scalar / attitudinal question: how very...?
- re'ai'e
- free conversion
- se'ai'e
*(exp!)* - (n, 1, 2, \dots, n-2, n - 1)st conversion
- se'au'e
*(exp!)* - (2, 3, \dots, n-1, n, 1)st conversion.
- sei'au
- terbri editor: passes the terbri value through the quoted function so that the sumti that fills it really is filling the output of the function
- ta'u'u
*(exp!)* - Copy and paste the overall tertau of immediately preceding sumti at this location.
- voi'a
*(exp!)* - pronoun analogical to the vo'a series for the fai-place.
- ze'au'e
*(exp!)* - last-th conversion: switches the last terbri with the first one.
- zi'oi
*(exp!)* - fills and deletes (in the manner as {zi'o}) all terbri of immediately previous word that are not explicitly filled with a sumti
- ensi
- x
_{1}(text) is written in a dialect where every bridi has arguments expressed in content/patient/recipient/stimulus semantic cases schema - genrkasu
- x
_{1}is the declined form of base noun x_{2}according to case x_{3}in language x_{4}. - ilki
- x
_{1}(text) is written in a dialect where every bridi has arguments expressed in Lakoff's image schemata - kanmige
- x
_{1}(property with two places for ce'u) is the property according to which members of x_{2}(ordered set with two members) are related to each other in the same way as members of x_{3}(ordered set with two members), or in the same way as members of x_{4}(ordered set with two members), etc. ... (infinite number of places) - slurume
- x
_{1}is a part of Lojban text representing rule 'free' according to the first edition of the book 'The Complete Lojban Language'. - tcaudu
- x
_{1}is the formatted address for something - (with format) starting with x_{2}, which is an address/locality/administrative subunit/region which belongs to slightly broader address/locality/administrative subunit/region x_{3}, which in turn itself belongs to a slightly broader address/locality/administrative subunit/region x_{4}, \dots (etc.). - tcuskuue
- x
_{1}(lu; quote) is said/expressed by x_{2}, followed by expression x_{3}(lu; quote), via expressive medium x_{4}. - tolzilo
- x
_{1}and x_{2}and x_{3}... satisfy an impossible-to-satisfy relation.