[1] : The Collaborative International Dictionary of English v.0.48

concurrence \concur"rence\, n. f., competition, equality of
   rights, fr. ll. concurrentia competition.
   1. the act of concurring; a meeting or coming together;
      union; conjunction; combination.
      1913 webster

            we have no other measure but our own ideas, with the
            concurence of other probable reasons, to persuade
            us.                                   --locke.
      1913 webster

   2. a meeting of minds; agreement in opinion; union in design
      or act; -- implying joint approbation.
      1913 webster

            tarquin the proud was expelled by the universal
            concurrence of nobles and people.     --swift.
      1913 webster

   3. agreement or consent, implying aid or contribution of
      power or influence; cooperation.
      1913 webster

            we collect the greatness of the work, and the
            necessity of the divine concurrence to it. --rogers.
      1913 webster

            an instinct that works us to its own purposes
            without our concurrence.              --burke.
      1913 webster

   4. a common right; coincidence of equal powers; as, a
      concurrence of jurisdiction in two different courts.
      1913 webster

[2] : WordNet (r) 2.0

concurrence
     n 1: agreement of results or opinions
     2: acting together as of agents or circumstances or events
     3: a state of cooperation syn: meeting of minds
     4: the temporal property of two things happening at the same
        time; "the interval determining the coincidence gate is
        adjustable" syn: coincidence, conjunction, co-occurrence
see also:
meeting of minds coincidence conjunction co-occurrence 

[3] : Moby Thesaurus II by Grady Ward, 1.0

228 moby thesaurus words for "concurrence":
   acceptance, accession, acclamation, accompaniment, accord,
   accordance, acquiescence, agglomeration, agglutination,
   aggregation, agreement, agreement in principle, agreement of all,
   alignment, alternation, analogy, approach, articulation,
   assemblage, assembly, assent, assentation, asymptote,
   bipartisanship, bond, bottleneck, bracketing, call-up, canvass,
   census, chorus, clustering, co-occurrence, coaction, coadjuvancy,
   coadministration, coagency, cochairmanship, codirectorship,
   coetaneity, coetaneousness, coevalneity, coevalness, coexistence,
   coextension, coincidence, collaboration, collaborativeness,
   collection, collectivism, colligation, collineation,
   collision course, collocation, collusion, combination,
   commensalism, common assent, common consent, common effort,
   common enterprise, communalism, communication, communism,
   communitarianism, community, comparison,
   complementary distribution, compliance, complicity, concatenation,
   concentralization, concentration, concert, concomitance,
   concomitancy, concord, concordance, concourse, confluence, conflux,
   congeries, conglomeration, congregation, congress, conjugation,
   conjunction, connection, consensus, consensus gentium,
   consensus of opinion, consensus omnium, consent, consentaneity,
   contemporaneity, contemporaneousness, convergence, converging,
   cooperation, cooperativeness, copulation, corralling, coupling,
   crossing, data-gathering, duet, duumvirate, ecumenicalism,
   ecumenicism, ecumenism, engagement, equidistance, esprit,
   esprit de corps, fellow feeling, fellowship, focalization, focus,
   funnel, gathering, general acclamation, general agreement,
   general consent, general voice, harmony, hearty assent, hookup,
   hub, ingathering, interaction, interchange, intercommunication,
   intercourse, interlacing, interlinking, intermeshing, interplay,
   intertwining, interweaving, interworking, inventory, isochronism,
   joinder, joining, joining of forces, joint effort, joint operation,
   jointure, junction, juxtaposition, knotting, liaison,
   like-mindedness, linkage, linking, marriage, mass action, meeting,
   meeting of minds, merger, merging, mesh, meshing, mobilization,
   morale, muster, mutual approach, mutual assistance,
   mutual understanding, mutualism, mutuality, narrowing gap,
   nondivergence, octet, one accord, one voice, pairing, parallelism,
   pooling, pooling of resources, pulling together, quartet,
   quid pro quo, quintet, radius, reciprocity, rodeo, roundup,
   same mind, seesaw, septet, sextet, simultaneity, single voice,
   solidarity, splice, spokes, support, survey, symbiosis,
   synchronism, synchronization, synergism, synergy, tangent,
   team spirit, teamwork, tie, tie-in, tie-up, tit for tat,
   togetherness, total agreement, trio, triumvirate, troika,
   unanimity, unanimousness, understanding, unification, union,
   unison, united action, universal agreement, warm assent, welcome,
   withness, yoking

[4] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

concurrence, french law. the equality of rights, or privilege which several 
persons-have over the same thing; as, for example, the right which two 
judgment creditors, whose judgments were rendered at the same time, have to 
be paid out of the proceeds of real estate bound by them. dict. de jur. h.t. 

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