There are several synonyms for "the letter", including missive, epistle, correspondence, note, memo, dispatch, communique, postcard, message, and communication. A missive usually refers to a long and formal letter, while an epistle is a formal and literary letter. Correspondence is a more general term that refers to letters exchanged between two parties. A note is a brief and informal letter, while a memo is a written message used in business settings. Dispatch and communique are often used in official government or military contexts. Postcard is a type of letter printed on a postcard-sized paper, while message and communication can refer to any type of written or verbal correspondence.