Difference between damage and loss in Korean
피해·손해

피해damage
Damage means harm or loss caused by something bad, like water, fire, or a storm. The Korean word 피해 is often used when a house, building, place, or people are hurt by an accident or natural disaster. You can use it to talk about small damage or big damage.

손해loss
손해 means a loss or a disadvantage. You use it when someone loses money, time, or a good chance, or when something is not a good deal. In Korean, people often say 손해를 보다, which means to suffer a loss or be worse off.
The difference
손해 is usually about money, profit, or something you lose. Use it when a person or business loses value, not mainly when a house or place is physically harmed.