When it comes to describing the category or scope of a particular subject, the phrase "range itself" can be substituted with multiple synonyms. For instance, "spectrum" is a word commonly used to refer to the full range of something, such as the color spectrum in a rainbow. "Gamut" is another synonym that can be utilized, often referring to a complete range of musical notes or emotions. "Array" is a term that describes the arrangement and variety of a collection, such as an array of products in a store. Finally, "scope" is a versatile word that can be used to denote the breadth or extent of something, whether it be a project or a career.