disruptdis·rupt /dɪsˈrʌpt/ verb [transitiveT] to prevent a situation, event, system etc from working in the normal wayTraders are worried that war would disrupt ocean shipping.
The union have threatened to disrupt services if their members are not happy with the pay award.
—disruption noun [countableC, uncountableU]Oil markets appear to be expecting severe disruptions of supplies.