残骸

1. Origins, structure, and basic meaning

• Structure: 残骸 is read as ざんがい and is a noun for wreckage, remains, or debris left after destruction, an accident, or dismantling.
• Basic usage: A discovered object appears in 飛行機の残骸, while material after demolition appears in 解体後の残骸.

2. Common pitfalls and similar expressions

• Wreckage and debris
  • Wreckage suits a destroyed aircraft or vehicle, while debris suits material left after demolition.
• Difference from 破片
  • 破片 is one broken fragment; 残骸 often refers collectively to what remains of a destroyed object.