ruin, ruins

Collins Cobuild//

4. N-UNCOUNT: Ruin is the state of being severely damaged or spoiled, or the process of reaching this state.

• The vineyards were falling into ruin.
  
• You have brought ruin on this entire family.
  

5. N-PLURAL : the N of n: The ruins of something are the parts of it that remain after it has been severely damaged or weakened.

• The new Turkish republic he helped to build emerged from the ruins of a great empire.
  

6. N-COUNT : usu pl: The ruins of a building are the parts of it that remain after the rest has fallen down or been destroyed.

• One dead child was found in the ruins almost two hours after the explosion.