Definitions
1.NounThe copy that acts as the main or original version among several copies, such as the master proof where changes from other author copies are combined, or a similar master manuscript with edits transferred to it.
2.NounAn original copy of a document, digital file, stencil, or other item that acts as the main version used to create all other copies, such as photocopies, printouts, or duplicates made by various methods.
3.NounA copy of a famous artwork made for purposes such as practice, enjoyment, respect, or imitation.
4.VerbTo transfer edits to a master copy from various stakeholders' copies (as for example with multiple authors and editors).
5.VerbTo make a copy of a masterpiece.