Structural outlines play a significant role in outlining and organizing written pieces in a manner that supports clarity, coherence, and effective communication. However, sometimes writers may want to avoid repetition and use synonyms to enhance the readability of their work. When referring to structural outlines, one can use terms such as framework, plan, sketch, blueprint, map, layout, or diagram. These suitable synonyms suggest a well-organized and carefully planned structure that provides readers with a clear overview of the content. Whether writing an essay, report, or research paper, using synonyms for the term "structural outlines" can elevate the quality and readability of a writer's work.