The term UNWRITE can be solved by the crossword solution ERASE, which is a five-letter word. To ERASE something means to remove it completely, often by rubbing or scrubbing it away. This term is often used in reference to written material, such as a document or text, but it can also refer to physical objects, such as a chalkboard or whiteboard. Unwrite is the opposite of write, and erasing is the opposite of writing.