1. to take action in order to prevent something from happening
2. to replace a regularly scheduled television or radio program with a special broadcast
Usage: broadcasting
3. to take the place of someone or something by acting first

Examples

• The government decided to preempt the crisis by implementing new policies.
• The president’s speech will preempt tonight’s regular programming.
• She tried to preempt criticism by addressing the issue early.
• The company moved quickly to preempt their competitor’s product launch.
• Breaking news preempted the scheduled sitcom.
• His quick apology preempted any angry response from his boss.