mật thư
Definition
- Noun:
- Secret letter / Coded message: A written communication that is intentionally concealed or encrypted to hide its contents from unauthorized readers. Historically, this could be a physical letter with hidden writing (e.g., invisible ink) or a message using a simple cipher.
- Confidential dispatch: An official or private message intended to be read only by the designated recipient, often involving sensitive information.
Usage Examples
- Noun:
- Nhà sử học tìm thấy một mật thư từ thế kỷ 18. (The historian found a secret letter from the 18th century.)
- Trong trò chơi, các đội phải giải mã mật thư để tìm manh mối tiếp theo. (In the game, teams must decode the coded message to find the next clue.)
- Đó là một mật thư chứa kế hoạch quan trọng. (That was a confidential dispatch containing an important plan.)
Advanced Usage
- In modern contexts, "mật thư" is commonly associated with scouting activities, team-building games, and escape rooms, where it refers to a puzzle or clue that participants must decipher.
- Phần thi thử thách nhất là giải mật thư trong rừng. (The most challenging part of the competition was solving the coded message in the forest.)
Variants and Related Words
- Thư mật (n): A less common variant with the same meaning (secret letter).
- Mã hóa (v): To encrypt, to encode.
- Họ cần mã hóa tin nhắn trước khi gửi. (They need to encrypt the message before sending it.)
- Giải mã (v): To decrypt, to decode.
- Trẻ em học cách giải mã mật thư đơn giản. (Children learn how to decode simple secret messages.)
Synonyms
- Coded message: A message written in a code or cipher.
- Secret dispatch: A confidential official communication.
- Encrypted letter: A letter whose contents are concealed by encryption.
Related Idioms
- While there is no direct idiom with "mật thư," the concept is related to the phrase:
- Giữ kín như bưng: To keep something secret, to keep something under wraps.
- Nội dung cuộc họp được giữ kín như bưng, giống như một mật thư. (The meeting's contents were kept completely secret, like a confidential dispatch.)