1. by a factor of six; - Example: "the population of this town increased sixfold when gold was found in the surrounding hills" [syn: sixfold, six times]
WordNet (r) 3.0 (2006):
six times
adv 1: by a factor of six; "the population of this town
increased sixfold when gold was found in the surrounding
hills" [syn: sixfold, six times]