倒壊

1. Origins, structure, and basic meaning

• Structure: 倒壊, read とうかい, means the collapse of a structure such as a house or wall.
• Basic usage: In 強い揺れで空き家が倒壊した。, strong shaking causes a vacant house to collapse.

2. Common pitfalls and similar expressions

• Collapse and the risk of collapse
  • 倒壊した describes a collapse that has occurred, while 倒壊の恐れがある describes a risk of collapse. The example about the wall warns of a danger that has not yet occurred.