Drummer (noun)

1. A person who plays the drums, a percussion instrument consisting of a hollow cylinder with a drumhead stretched over one or both ends, played by striking it with sticks or the hands.
2. A person who beats a drum, or a person who leads a march or parade by beating a drum.
3. A person who creates a rhythm using the drums.

Origin:

The word drummer comes from the word "drum" which means a percussion instrument, and it was first recorded in the early 17th century.

Examples:

1. He is a professional drummer who plays in a rock band.
2. She is a drummer in the marching band.
3. He is a drummer who also plays other percussion instruments.
4. The drummer is the backbone of the band.
5. The drummer was so good that the crowd couldn't help but dance to the beat.