面

1. Origins, structure, and basic meaning

• Structure: 面, read めん, means a face of an object or an aspect from which something is considered.
• Basic usage: It is used to identify which face of a box should be placed down or to weigh convenience alongside cost.
  • 箱の広い面を下にして置いてください。

2. Common pitfalls and similar expressions

• An aspect compared with 部分
  • In its abstract sense, 面 focuses on an aspect considered or evaluated, while 部分 focuses on a part within a whole.