“Computer command used to fix a mistake” crossword clue

Reveal the answer to see why it works and where this clue has appeared before.UNDO is the answer to the New York Times crossword clue “Computer command used to fix a mistake”. It was last seen in the puzzle of March 24, 2026, where it runs at 6 Down and fills 4 squares. It crosses 4 other entries in that grid — those are listed below and are the quickest way to confirm the letters you already have.