9. collapse 1)fall down suddenly e.g. The wall collapsed when a group of children were playing next to it It was warned that the houses might collapse any moment in the storm 2)fail suddenly and completely e.g. Many banks collapsed during the Asian Financial crisis9. collapse – 1) fall down suddenly e.g. The wall collapsed when a group of children were playing next to it . It was warned that the houses might collapse any moment in the storm. 2) fail suddenly and completely e.g. Many banks collapsed during the Asian Financial crisis