noun
Refers to the physical side surface of an object, or a position to the side. Common in geometry, architecture, and everyday description.
箱の側面にラベルを貼ってください。
Please attach the label to the side of the box.
建物の側面には窓
There is not a single window on the side of the building.
noun
Used for a particular aspect or dimension of a problem, issue, or situation. Often appears in analytical or explanatory contexts.
この問題の経済的な側面を考えなければならない。
We must consider the economic aspect of this problem.
彼の性格にはまだ知られていない側面がある。
There is still an unknown side to his personality.