Damage; the state of being broken or impaired (often used in written/technical contexts). Also used with する to mean 'to damage' or 'be damaged'.
落下の衝撃でスマホに破損が生じた。
The smartphone was damaged by the impact of the fall.
外装の破損は保証の対象外です。
Exterior damage is not covered by the warranty.
配送中に商品が破損することがありますので、梱包に注意してください。
Products may be damaged during shipping, so please pay attention to the packaging.