Definition of blueprint
1
: a photographic print in white on a bright blue ground or blue on a white ground used especially for copying maps, mechanical drawings, and architects' plans
2
: something resembling a blueprint (as in serving as a model or providing guidance)
especially
: a detailed plan or program of action
a blueprint for victory
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Merriam-Webster unabridged
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Time Traveler for blueprint
The first known use of blueprint was in 1857
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