equivalence

nouns

a state of being essentially equal or equivalent; equally balanced
"on a par with the best"
equality, equation, equivalence, par
essential equality and interchangeability
equivalence
is derived from
equivalent
antonym
nonequivalence
is a type of (narrower)
the quality of being the same in quantity or measure or value or status
equality
qualities that are comparable
"no comparison between the two books"; "beyond compare"
comparability, compare, comparison, equivalence