noun
- a device that produces sparks, especially a spark plug in an engine
- a person or thing that initiates or stimulates activity or excitement
Usage: informal
Examples
- The mechanic replaced the old sparker in the motorcycle engine.
- Check all the sparkers before starting the boat motor.
- She was the sparker who got everyone excited about the project.
- The new teacher became a real sparker in the classroom.
- Without a working sparker, the engine won’t start.
- He’s always been a sparker when it comes to organizing events.