秘密 (mì mì) means “secret; private; confidential; clandestine; a secret”. It is an HSK 5 Chinese word in the HSK 3.0 vocabulary.
Measure word: 个
Practice each character:
他的秘密让我很好奇。
Tā de mìmì ràng wǒ hěn hàoqí.
His secret made me curious.
Updated: 2026-05-27