1. A contact print of a drawing or other image rendered as white lines on a blue background, especially such a print of an architectural plan or technical drawing. Also called cyanotype.
2. A mechanical drawing produced by any of various similar photographic processes, such as one that creates blue or black lines on a white background.
3. A detailed plan of action. See Synonyms at plan.
4. A model or prototype.
tr.v. blue·print·ed, blue·print·ing, blue·prints
1. To make a blueprint of.
2. To lay a plan for.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.