Copy

Definitions

To duplicate data, files, objects, or values so the same content exists in another location or memory region. In software discussions, copy can also imply tradeoffs around performance, mutability, ownership, and whether changes to one instance should affect the other.
In plain English: To make a duplicate of some data or content.
Example: "The bug came from mutating a shared object when the code should have made a copy before passing it into the formatter."