Final answer:
A prospectus is a written document that outlines or shows a project before it begins. It provides information about the project's goals, objectives, and plans.
Step-by-step explanation:
The word that means 'a document that outlines or shows a project before it begins' is prospectus. A prospectus is a written document that provides information about a project or proposal, including its goals, objectives, and plans. It is commonly used in business and academic settings to present a detailed overview of a project before it is implemented.