rivnyj
Rivnyj is a Ukrainian adjective commonly translated as “even,” “level,” or “flat,” and also used to mean “equal” in mathematical or logical contexts. The term can describe a physical surface as smooth and flat, or refer to a state of equivalence between quantities or values.
Etymology and related terms: Rivnyj derives from the Slavic root meaning equality or sameness and is cognate
Usage: In everyday Ukrainian, rivnyj describes surfaces, objects, and landscapes that are flat or even, as in
Notes: In arithmetic, even numbers are typically called парні числа, not rivnyj, although rivnyj can appear in contexts