blueprint
n. countable B2 Upper Intermediate US //ˈbɫuˌpɹɪnt// UK //blˈuːpɹɪnt// blue·print
n. a detailed plan or design for a project. You use this word when you want to describe the main idea or structure before the work begins.
n. a detailed technical drawing or plan showing the design and structure of a building or machine. Used metaphorically for any comprehensive plan or scheme.
The architect showed us the blueprint for the new house.
The committee used the report as a blueprint for their five-year strategy.
The constitution served as a blueprint for the nation's democratic institutions, outlining the separation of powers and individual rights.
From blue + print. Introduced by Sir John Herschel in 1842.