平面

1. Origins, structure, and basic meaning

• Structure: 平面 is read as へいめん and means “flat surface” and “plane”.
• Basic usage: It denotes representing a solid on a plane and finishing a board into a smooth flat surface.

2. Common pitfalls and similar expressions

• 平面に表す / 平面に仕上げる
  • Use 平面に表す for a representational plane and 平面に仕上げる for the resulting surface.