secret

1. Origins, structure, and basic meaning

• Structure: 秘 has 10 strokes and conveys keeping something concealed or held within.
• Basic usage: 秘密 is read ひみつ, and 秘める is read ひめる.

2. Common pitfalls and similar expressions

• Keeping a secret and harboring something
  • 秘密にしておこう means let's keep it a secret.
  • 夢を秘めている means harboring a dream.
  • 多くの謎を秘めている describes containing many mysteries that remain hidden.
  • 秘める can describe a place as well as a person's inner feelings.