The crossword solution for the term 'Blueprint Detail, Briefly' is SPEC. SPEC stands for 'SPECIFICATION, ' which is a detailed description of how a product or service should be designed, constructed, and/or delivered. It is often used in engineering and construction projects to ensure that all parties involved have a clear understanding of the project's requirements. A blueprint detail is a specific part of a SPECIFICATION that outlines the exact details of a particular component or feature of the project.