Meaning of "copy-edit" in the English dictionary

Copy editing is the work that an editor does to improve the formatting, style, and accuracy of text. Unlike general editing, copy editing might not involve changing the content of the text. Copy refers to written or typewritten text for typesetting, printing, publication, broadcast or other independent distribution. Copy editing is done before both typesetting and proofreading, the latter of which is the last step in the editorial cycle. In the US and Canada, an editor who does this work is called a copy editor. An organisation's highest-ranking copy editor, or the supervising editor of a group of copy editors, may be known as the copy chief, copy desk chief, or news editor. In book publishing in the United Kingdom and other parts of the world that follow British nomenclature, the term copy editor is used, but in newspaper and magazine publishing, the term is sub-editor, commonly shortened to sub. The senior sub-editor on a title is frequently called the chief sub-editor. As the "sub" prefix suggests, British copy editors typically have less authority than regular editors.