Backbone

Pronunciation: /ˈbækˌboʊn/

Backbone (noun)

  1. The long row of bones in your back that supports your body and protects the spinal cord.
  2. The main support or strong part that helps something stay firm or work well.
  3. The main system or set of ideas that other parts depend on.

Examples

  • The backbone supports the body and helps it stay upright.
  • A strong backbone helps the body move smoothly.