What does 秘密 mean?
秘密 is a Japanese noun meaning “secret, secrecy” in English. It can also be translated as “mystery, secret (e.g. to success), esoteric teachings” depending on context. It is written as 秘密 in kanji, ひみつ in hiragana, and himitsu in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
私は彼女に取り入ってうまく秘密を聞き出した。
I charmed a secret out of her.