x_{1} is a negative number (less than zero (0)), understood as a member of an ordered set with additive identity, such as the typical structure on the set of all real numbers.

See also: ma'u zei namcu.

- namcu
- x
_{1}(li) is a number/quantifier/digit/value/figure (noun); refers to the value and not the symbol. - ninmu
- x
_{1}is a woman/women; x_{1}is a female humanoid person [not necessarily adult]. - zekri
- x
_{1}(event/state) is a punishable crime/[taboo/sin] to people/culture/judges/jury x_{2}.

- cmapagjvo
- x
_{1}(text) is a lujvo with meaning x_{2}and arguments x_{3}, and which is constructed from tanru/veljvo x_{4}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. - zejvo
- x
_{1}(text) is a Lojban compound predicate using the particle “zei”; with meaning x_{2}, arguments x_{3}, built from metaphor (tanru) x_{4}. - luvrzei
- x
_{1}(text) is a Lojban compound predicate using the particle “zei”; with meaning x_{2}, arguments x_{3}, built from metaphor (tanru) x_{4}. - zeiljvo
- x
_{1}(text) is a Lojban compound predicate using the particle “zei”; with meaning x_{2}, arguments x_{3}, built from metaphor (tanru) x_{4}. - zo si si zei fa'o
- x
_{1}is a nonsense zei-lujvo using parts x_{2}, silly by standard x_{3}.

- mucyveldekpu
- d
_{4}is d_{2}(default 1) dessertspoon(s)/dessertspoonful(s)/cochleare medium (dstspn./cochl. med.) [volume-unit], standard d_{3}=m_{1}(default 1 dessertspoon=10 mL),d_{1}tablespoon(s),d_{5}teaspoon(s), d_{6}one ml measuring spoon(s). - mucyxeldekpu
- d
_{5}is d_{2}(default 1) teaspoon(s)/teaspoonful(s)/cochleare minus (t., ts., tsp. or tspn./cochl. min.)[volume-unit], standard d_{3}=m_{1}(default 1 teaspoon=5 mL),d_{4}dessertspoon(s),d_{1}tablespoon(s), d_{6}one ml measuring spoon(s). - zmana'u
- z
_{1}=n_{1}is a positive number relative to origin z_{2}. - kamre
- x
_{1}is a (unit consisting of) x_{2}(li; number) of x_{3}in dimension/aspect x_{4}(default units) - de'ei
- on (n)-th day from a given point (by default from today)
- fei'u
- Prefix division by following unit selbri
- no'e'u
- digit/number: liminal zero; neither positive nor negative
- rai'i
- mekso (2 or 3)-ary operator: maximum/minimum/extreme element; ordered list of extreme elements of the set underlying ordered set/structure X
_{1}in direction X_{2}of list length X_{3}(default: 1) - si'i'ai
- digit/number: a finite/bounded number, finitely many.
- te'ai
- Exponentiation of unit selbri
- xo'ei
- unary mekso operator: produces a string of n consecutive "xo'e"'s, treated as digits (concatenated into a single string of digits)
- ionti
- x
_{1}is an ion of radical/(atom of element)x_{2}with x_{3}charges - trendelenburge
- x
_{1}(humanoid body) is in (reverse) Trendelenburg position with the feet higher than the head by x_{2}(angle measurement, measured relative to the horizontal; units must be specified). - xaudbo
- x
_{1}is \sqrt(A) [decimal: 1×10^{+(1/2)}] of x_{2}in dimension/aspect x_{3}(default is units). - zenbaje
- x
_{1}(experiencer/function) increases/gains/is incremented/augmented in property/quantity x_{2}such that it achieves/had achieved having that property at 'time' x_{3}(abstraction, number) according to standard x_{4} - zmaumce
- x
_{1}(li) is a bound on set x_{2}(set) in direction x_{3}(li) in ordered structure x_{4}; x_{1}bounds x_{2}from the x_{3}side in x_{4}; x_{2}is bounded from the x_{3}side by x_{1}. - ma'u zei ionti
- x
_{1}is an cation of radical/(atom of element)x_{2}with x_{3}charges. - ma'u zei namcu
- x
_{1}is a positive number (greater than zero (0)), understood as a member of an ordered set with additive identity, such as the typical structure on the set of all real numbers.