WordNet (r) 3.0 (2006):

in return
    adv 1: (often followed by `for') in exchange or in
           reciprocation; "gave up our seats on the plane and in
           return received several hundred dollars and seats on the
           next plane out"; "we get many benefits in return for our
           taxes" [syn: in return, reciprocally]

Moby Thesaurus II by Grady Ward, 1.0:

26 Moby Thesaurus words for "in return":
   au pair, back, by turns, en revanche, even, exchangeably,
   for a consideration, in amends, in answer, in compensation,
   in consideration, in exchange, in rebuttal, in reciprocation,
   in reparation, in reply, in reprisal, in requital, in response,
   in retaliation, in retribution, in revenge, in turn, mutually,
   reciprocally, turn about