染み

1. Origins, structure, and basic meaning

• Structure: 染み (しみ) can mean a fabric stain or an age spot on skin.
• Basic usage: Detergent removes a shirt stain; a mirror reveals more spots on a cheek.

2. Common pitfalls and similar expressions

• Textile mark removed and skin spots increasing
  • 染みを落とす is cleaning; 染みが増える is skin change. Surface and predicate select the sense.