1. the movable part inside a bell that strikes the sides to make it ring
2. a hinged board used in filmmaking that is clapped together to synchronize sound and picture
Usage: film industry
3. a person who claps, especially to show approval

Examples

• The church bell’s clapper was damaged in the storm.
• She could hear the clapper hitting the sides of the cowbell.
• The director called for quiet as the assistant held up the clapper.
• The film crew used a digital clapper instead of the traditional wooden one.
• The enthusiastic clapper in the front row encouraged the entire audience.
• Without its clapper, the bell made no sound when shaken.