silentexercise

noun
UK /ˈsaɪlənt ˈeksəsaɪz/
US /ˈsaɪlənt ˈeksərsaɪz/

Exercise you do without making any noise.

The teacher told the class to do silent exercise so they would not wake the baby.


OTHER MEANINGS

2. A mental workout done quietly, such as thinking through a problem.

Solving the puzzle was a silent exercise in patience.

3. A practice or drill performed without speaking or sound.

The soldiers did a silent exercise in the field before dawn.

4. A written task done without talking, often used in classrooms.

The students completed a silent exercise on spelling.