Self-documenting code is an essential aspect of efficient programming. It is software code that is clear and concise and requires minimal external documentation. This property makes it easy to maintain, read, and understand by other developers who may end up working on the codebase in the future. Some synonyms for self-documenting code include intuitive code, self-explanatory code, literate programming, and readable code. Intuitive code is code that is easy to understand, and it closely relates to the purpose, structure, and syntax of programming languages. Self-explanatory code, on the other hand, needs little or no additional comments or documentation to understand its functions. Literate programming is a method that adds documentation within the code itself at a high level, making it easy for developers to read and understand. Readable code is code that can be easily understood by any developer, even if they have not previously worked with the project.