exerciser
nounUK /ˈeksəsaɪzə/
US /ˈeksərsaɪzər/
A person or thing that does exercise to stay healthy and strong.
My mom uses an exerciser every morning to keep fit.
OTHER MEANINGS
2. A machine or device used to work out the body.
He bought a small hand exerciser to strengthen his grip.
3. A person who uses or practices something regularly.
She is a regular exerciser of her right to vote.
4. A device that provides practice or training in a skill.
The piano exerciser helps beginners learn finger positions.