The Collaborative International Dictionary of English v.0.48:
Outweigh \Out*weigh"\, v. t. To exceed in weight or value. [1913 Webster]WordNet (r) 3.0 (2006):
outweigh v 1: be heavier than 2: weigh more heavily; "these considerations outweigh our wishes" [syn: preponderate, outweigh, overbalance, outbalance]