The condition of being equivalent or equal; equality of worth, value, signification, or force; as, an equivalence of definitions. [1913 Webster]
Equal power or force; equivalent amount. [1913 Webster]
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]

equivalence, v. t.

To be equivalent or equal to; to counterbalance. Sir T. Browne. [1913 Webster]

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THESAURUS

equivalence

accord, accordance, affinity, agreement, analogousness, assent, balance, chorus, coequality, coextension, coherence, coincidence, commensurability, communion, community, comparability, comparableness, comparativeness, compatibility, concert, concord, concordance, conformance, conformation, conformity, congeniality, congruence, congruency, congruity, consistency, consonance, consort, cooperation, corelation, correlation, correlativism, correlativity, correspondence, equality, equation, equilibrium, equipoise, equipollence, equiponderance, equity, equivalency, evenness, harmony, homogeneity, homoousia, identity, indistinguishability, intersection, inverse proportion, inverse ratio, inverse relationship, justice, levelness, likeness, mutuality, no difference, oneness, overlap, par, parallelism, parity, peace, poise, proportion, proportionability, proportionality, rapport, ratio, reciprocality, reciprocation, reciprocity, relativity, sameness, self-consistency, self-identity, selfhood, selfness, selfsameness, similarity, symmetry, sync, synchronism, synonymity, synonymousness, synonymy, tally, timing, uniformity, union, unison, unisonance, unity

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ROGET THESAURUS

equivalence

Equality

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.

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