1. equivalence(n = noun.state) equality, equation, par - a state of being essentially equal or equivalent; equally balanced; "on a par with the best"
is a kind of position, status
has particulars: egalite, egality, tie
2. equivalence(n = noun.attribute) Array - essential equality and interchangeability; Array
is a kind of equality
has particulars: parity
Antonym: nonequivalence
Derived form adjective equivalent1
3. equivalence(n = noun.attribute) comparability, compare, comparison - qualities that are comparable; "no comparison between the two books"; "beyond compare"
is a kind of alikeness, likeness, similitude
1. The condition of being equivalent or equal; equality of worth, value, signification, or force; as, an equivalence of definitions. [1913 Webster]
2. Equal power or force; equivalent amount. [1913 Webster]
3. The quantity of the combining power of an atom, expressed in hydrogen units; the number of hydrogen atoms can combine with, or be exchanged for; valency. See Valence. [1913 Webster]
To be equivalent or equal to; to counterbalance. Sir T. Browne. [1913 Webster]
N equality, parity, coextension, symmetry, balance, poise, evenness, monotony, level, equivalence, equipollence, equipoise, equilibrium, equiponderance, par, quits, a wash, not a pin to choose, distinction without a difference, six of one and half a dozen of the other, tweedle dee and tweedle dum, identity, similarity, equalization, equation, equilibration, co-ordination, adjustment, readjustment, drawn game, drawn battle, neck and neck race, tie, draw, standoff, dead heat, match, peer, compeer, equal, mate, fellow, brother, equivalent, equal, even, level, monotonous, coequal, symmetrical, coordinate, on a par with, on a level with, on a footing with, up to the mark, equiparant, equivalent, tantamount, indistinguishable, quits, homologous, synonymous, resolvable into, convertible, much at one, as broad as long, neither more nor less, much the same as, the same thing as, as good as, all one, all the same, equipollent, equiponderant, equiponderous, equibalanced, equalized, drawn, half and half, isochronal, isochronous isoperimetric, isoperimetrical, isobath, isobathic, equally, pari passu, ad eundum, caeteris paribus, in equilibrio, to all intents and purposes, it comes to the same thing, it amounts to the same thing, what is sauce for the goose is sauce for the gande.