THESAURUS
Mutual
accessory, accompanying, associated, attendant, attending, changeable, coacting, coactive, coadjutant, coadjuvant, coefficient, coincident, collaborative, collateral, collective, collectivist, collectivistic, collusive, combined, commensal, common, communal, communalist, communalistic, communist, communistic, communitarian, commutable, commutative, commutual, complementary, concerted, concomitant, concordant, concurrent, concurring, conjoint, conjunct, connected, conniving, convertible, cooperant, cooperating, cooperative, correlative, coupled, ecumenic, equal, equalizing, equivalent, even, exchanged, fellow, general, give-and-take, harmonious, harmonized, in common, interactive, interchangeable, interchanged, joined, joint, noncompetitive, paired, parallel, permutable, popular, public, reciprocal, reciprocating, reciprocative, related, respective, retaliatory, returnable, shared, simultaneous, social, socialistic, societal, standard, swapped, switched, symbiotic, synergetic, synergic, synergistic, traded, transposed, twin, two-way, uncompetitive, united
ROGET THESAURUS
Mutual
Correlation
N
correlation, reciprocalness, reciprocity, reciprocation, mutuality, correlation, interdependence, interrelation, connection, link, association, interchange, exchange, barter, reciprocator, reprocitist, reciprocal, mutual, commutual, correlative, reciprocative, interrelated, closely related, alternate, interchangeable, interdependent, international, complemental, complementary, mutually, mutatis mutandis, vice versa, each other, one another, by turns, reciprocally, happy in our mutual help.
Interchange
N
interchange, exchange, commutation, permutation, intermutation, reciprocation, transposition, rearrangement, shuffling, alternation, reciprocity, castling (at chess), hocus-pocus, interchangeableness, interchangeability, recombination, combination, barter, tit for tat, cross fire, battledore and shuttlecock, quid pro quo, interchanged, reciprocal, mutual, commutative, interchangeable, intercurrent, combinatorial, recombinant, in exchange, vice versa, mutatis mutandis, backwards and forwards, by turns, turn and turn about, each in his turn, everyone in his turn.