Common terms:
* Proofreader: This is the most straightforward and commonly used term.
* Copyeditor: This term is more broad, encompassing proofreading and other aspects of editing, like style and grammar.
* Editor: This term is even broader, encompassing copyediting, developmental editing, and other types of editing.
Less common, but still valid:
* Corrector: This term focuses specifically on correcting errors.
* Quality control: This term is more commonly used in a manufacturing context, but can also apply to proofreading.
* Language specialist: This term emphasizes the expertise in language needed for proofreading.
The best term to use will depend on the specific context and the tasks involved.