Secret writings, also known as confidential manuscripts or hidden texts, have been used for centuries to communicate sensitive or private information. Other synonyms for this term include encoded messages or encrypted documents, which are written in a way that only the intended recipient can decipher. Discreet notes or covert scripts can also be used to refer to secret writings, as they are typically meant for only a select group of people to read. Cryptic records or furtive inscriptions are other terms that can be used to describe confidential manuscripts. The use of secret writings has been an essential tool for communication, espionage, and even romance throughout history.