洗練

1. Origins, structure, and basic meaning

• Structure: 洗練(せんれん) is refinement through removing rough or unnecessary elements, or the resulting refined quality.
• Basic usage: It applies to the simple elegance of a tool's shape or the expression in repeatedly revised writing.

2. Common pitfalls and similar expressions

• Refining something versus its refined state
  • The example's 表現を洗練させた describes refining the expression. Before a noun, 洗練された表現 can describe expression in its refined state.