An entire system is a comprehensive set of components that work together to achieve a desired outcome. The term 'shebang' (7 letters) is a slang term used to refer to the beginning of a script or program, while 'GAMUT' (5 letters) is a term used to describe the full range of something. Together, these two terms can be used to describe an entire system as a comprehensive set of components that work together to achieve a desired outcome, from start to finish.