紅潮

1. Origins, structure, and basic meaning

• Structure: 紅潮, read こうちょう, denotes a visible flush of the face caused by nervousness, excitement, or similar emotion.
• Basic usage: It describes cheeks or the face becoming flushed through nervousness or excitement.

2. Common pitfalls and similar expressions

• Visible color change caused by emotion
  • It is a temporary rise in facial color caused by emotion, not merely a naturally reddish appearance.