x1 is similar/parallel to x2 in property/quantity x3 (ka/ni); x1 looks/appears like x2.
Also: x1 is a likeness/image of x2; x1 and x2 are alike; similarity and parallel differ primarily in emphasis.
See also dunli, frica, mintu, panra, simlu, vrici.
x1 (li; number) is congruent to x2 (li; number; see description for canonical/traditional/contextless default usage) modulo x3 (li; number); \frac(x1 - x is an integer.
Property relativizing determiner / unary quantifier constructor. {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.
marks a construct as being a reference/allusion - explicit marker of divorce/isolation of a construct from any external allusions that may come to mind