When it comes to business arrangements and transactions, documentation is crucial to ensure clarity and accountability. One common document required in various industries is the "cover note," which acts as an introduction or summary of a more detailed document or communication. While this term is widely used, there are many synonyms to describe similar documents such as cover letter, introductory letter, brief, abstract, summary, preface, memorandum, or dispatch note. Each synonym may convey a slightly different meaning or level of formality, so it's important to choose the right one depending on the context and purpose of the document.