Avert/əˈvɜːrt/ Definition 1 of 2Pro Tip 1/3Proactive Action Use 'avert' when actions are taken to stop something bad before it happens. The quick vaccination campaign averted a health crisis. Pro Tip 2/3Imminent Threat 'Avert' often suggests a close call with a negative event or danger. She slammed on the brakes, averting a collision. Pro Tip 3/3Abstract Concepts Can also be used to prevent non-physical events, like an argument or misunderstanding. Their apology averted any misunderstanding between them.