dunli -dun-du'i- gismu

x1 is equal/congruent to/as much as x2 in property/dimension/quantity x3.

Same in quantity/quality (not necessarily in identity); 'analogy' may be expressed as the equivalence of two properties of similarity (ka x1 simsa x2) and (ka x3 simsa x4). See also du'i, satci, frica, simsa, mintu.

In definition:

du'i
dunli modal, 1st place (equalled by) equally; as much as ...
sedu'i (comp!)
dunli modal, 2nd place (same as 1st); equal to ... [same as 1st place modal].
tedu'i (comp!)
dunli modal, 3rd place equally; equal in property ...

In notes:

frica
x1 differs/is distinct from/contrasts with/is unlike x2 in property/dimension/quantity x3.
karbi
x1 [observer] compares x2 with x3 in property x4 (ka), determining comparison x5 (state).
mintu
x1 is the same/identical thing as x2 by standard x3; (x1 and x2 interchangeable).
satci
x1 [measurement/match] is exact/precise to precision x2 in property/quantity x3 (ka/ni).
simsa
x1 is similar/parallel to x2 in property/quantity x3 (ka/ni); x1 looks/appears like x2.
dubdu'i
x1 is equal to / has the same value as x2
dunroi
x1 happens equally as often as x2 in interval x3
lazdu'i
x1 and x2 are members of the same family
pimdu'i
d1=p2 has the same feathers/plumage as d2, the feathers/plumage being p1.
smisi'u
The members of x1=simx1 (set) resemble one another in property x2=simx2.
sordu'i
x1 equals in number to x2
cnida
x1 empathizes with x2, showing same emotion x3 about x4
modju
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.
ku'ai'i (exp!)
empty/vacuous selbri
dunlija
x1 and x2 both satisfy predicate x3
dunliki
Something is such that both x1 and x2 are related to it by predicate x3. x4 [quantifier] thing to which x1 is related by predicate x3 is such that x2 is related to it by predicate x3.
dunlini
x1 and x2 satisfy predicate x3 to the same extent
dunlixu
Either both x1 and x2, or neither x1 nor x2, satisfy predicate x3