1. the final part or conclusion of something
2. the circular motion of a pitcher’s arm before throwing a baseball
Usage: baseball
3. the act of winding something up, especially a spring-operated mechanism

1. operated by a spring that is wound up

Examples

• The meeting’s windup included a summary of all decisions made.
• The pitcher’s windup was slow and deliberate before the fastball.
• She collected vintage windup toys from the 1950s.
• The windup clock needed to be wound every morning.
• After the long presentation, the windup felt rushed.
• His windup motion confused the batter at home plate.
• The windup music box played a gentle lullaby.