1. plural of countdown; sequences of numbers spoken in reverse order before an event begins

Examples

• The New Year’s Eve countdowns began at midnight in different time zones.
• NASA performed several countdowns before the rocket launch.
• The children practiced countdowns from ten to zero.
• Television networks broadcast countdowns to the big announcement.
• The coach used countdowns to time the team’s drills.
• Multiple countdowns were needed due to technical delays.
• The app features customizable countdowns for various events.