WordNet (r) 3.0 (2006):
token payment n 1: a small payment made in acknowledgement of an obligationMoby Thesaurus II by Grady Ward, 1.0:
20 Moby Thesaurus words for "token payment": bail, bond, earnest, earnest money, escrow, gage, handsel, hock, hostage, mainprise, pawn, pignus, pledge, recognizance, replevin, replevy, surety, undertaking, vadimonium, vadium