1. a person who taps something, especially to extract liquid
2. a device or tool used for tapping
3. a person who tap dances

Examples

• The maple syrup tapper collected sap from dozens of trees.
• He worked as a rubber tapper on the plantation.
• The mechanic used a tapper to create threads in the metal.
• She was an accomplished tapper who performed in Broadway shows.
• The phone tapper was arrested for illegal surveillance.
• The beer tapper drew fresh pints for the customers.