agency, alternation, amends, atonement, balancing, battledore and shuttlecock, change, compensation, cooperation, counteraction, counterbalancing, counterchange, course, cross fire, crossing, delegation, deputation, deputyship, displacement, exchange, expiation, give-and-take, globe-trotting, going, indemnification, indemnity, interchange, intermutation, interplay, journeying, lex talionis, locomotion, measure for measure, motion, movement, moving, mutual admiration, mutual support, mutual transfer, mutuality, offsetting, passage, permutation, power of attorney, progress, quid pro quo, reciprocality, reciprocation, reciprocity, recompense, rectification, redress, reparation, repayment, replacement, representation, restitution, retaliation, revenge, satisfaction, something for something, subrogation, substitution, supersedence, superseding, supersedure, supersession, supplantation, supplanting, supplantment, switch, tit for tat, tourism, touristry, traject, trajet, transit, transposal, transposition, travel, traveling, vicariousness