N. interchange, # exchange, commutation, permutation, intermutation, reciprocation, transposition, rearrangement, shuffling, alternation, reciprocity, castling, hocus-pocus, interchangeableness, interchangeability, recombination, combination 48, 84, barter, tit for tat, cross fire, battledore and shuttlecock, quid pro quo

V. interchange, exchange, counterchange, bandy, transpose, shuffle, change bands, swap, permute, reciprocate, commute, give and take, return the compliment, play at puss in the corner, play at battledore and shuttlecock, retaliate, requite, rearrange, recombine

Adj. interchanged, substituted, reciprocal, vicarious, mutual, subdititious, commutative, interchangeable, intercurrent, combinatorial, recombinant

Adv. in exchange, instead, vice versa, in place of, mutatis mutandis, in lieu of, backwards and forwards, in the stead of, by turns, in the room of, turn and turn about, faute de mieux, each in his turn, 2, everyone in his turn, complex change