›to dishonestly influence or change something in order to get the result that you want: Several insurance companies have been accused of rigging their computer programs to produce artificially low values for injury claims.rig an election/vote/pollrig prices/bids/systemsThe airline has been fined for rigging prices.
rig the market›COMMERCE, STOCK MARKETto unfairly or illegally control the sale or the price of products, shares, etc. in order to make a profit: The energy regulator accused the big electricity generators of rigging the market to keep prices deliberately high.