coreexercise
nounUK /ˈkɔːr ˈeksəsaɪz/
US /ˈkɔːr ˈeksərsaɪz/
A core exercise is a move that makes the muscles in the middle of your body strong.
The teacher showed us a core exercise where we hold our tummies tight.
OTHER MEANINGS
2. A basic or essential task that must be done as part of a job or plan.
Checking the tickets is a core exercise for the event staff.
3. A practice activity that is central to a training program.
The fire drill is a core exercise for the whole school.
4. A main part of a set of school lessons that everyone must do.
Reading aloud is a core exercise in our morning class.