1. advance notice or warning given before an event or action occurs
Usage: formal; often used in business or official contexts

Examples

• The company sent a prenotification to all employees about the upcoming system maintenance.
• Emergency services require prenotification before conducting large-scale drills.
• The contract includes a clause requiring 30-day prenotification of any changes.
• Residents received prenotification about the scheduled power outage.
• The airline’s prenotification system alerts passengers of flight delays.
• Government agencies must provide prenotification before implementing new regulations.