| in the event of in the event of (something) if something should happen. In the event of war, we have to be prepared to send in troops. Travel insurance protects you in the event that you have to cancel your trip. Usage notes: sometimes used in the form in the unlikely event - if something should happen that you do not expect to happen: In the unlikely event of a fire, alarms will sound and you should exit immediately. Related vocabulary: in case of something |