blueprint
/ˈbluˌpɹɪnt/ noun C1- A type of paper-based reproduction process producing white-on-blue images by means of a photosensitive ferric compound, used primarily for technical and architecture's drawings, now largely replaced by other technologies.
- A print produced with this process.
- A detailed technical drawing (now often in some electronically storable and transmissible form).
- Any detailed plan, whether literal or figurative.
Plural blueprints
From the library
His ambitious blueprint involved constructing over a thousand miles of subterranean street sewers, navigating complex topography and existing underground railway foundations.
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