Cave in

Pronunciation: /ˈkeɪv ˈɪn/

Cave in (verb)

  1. To collapse suddenly inward, especially a roof, ceiling, or ground, often because of weight or damage.
  2. To fail or break down because of pressure, stress, or weakness, leading to a sudden loss of support.

Examples

  • The roof collapses after the storm, and the room fills with dust.
  • The ceiling caves in when the old beams weaken.