›to make rules or laws relating to a particular activity: We cannot legislate a charge on businesses outside the state.legislate for/on sthThe purpose of the Electronic Communications Bill was to legislate for a framework in which e-commerce could safely take place.legislate against sthLegislating against carbon emissions is central to the Kyoto Protocol agreement.legislate on sthIn the interests of balancing the economy, Congress must legislate on trade.legislate to do sthSeveral ministers are legislating to ban political donations from people not registered to vote.