Keywords: collapse, cave in
Sign Definition
As a Noun
1. The destruction of a building by the roof and walls falling down. English = collapse.
2. The destruction of a tunnel or a cave by the ceiling and walls falling down. English = cave in.
As a Verb or Adjective
1. Of the roof and walls of a building, to suddenly fall down. English = collapse.
2. Of the ceiling of a tunnel or cave, to suddenly fall down. English = cave in, collapse.
