corestrength

noun
UK /ˈkɔː.strɛŋθ/
US /ˈkɔːr.strɛŋθ/

The power in the middle of your body that helps you stand and move.

Doing planks every day builds your corestrength.


OTHER MEANINGS

2. The inner power of a person or team to keep going.

The team's corestrength helped them finish the hard project.

3. The most important part that makes something strong.

Trust is the corestrength of a good friendship.

4. The strength of the central part of a building or object.

Engineers checked the corestrength of the bridge.