Definitions of undo
The word "undo" uses 4 letters: dnou.
v. t. - To reverse, as what has been done; to annul; to bring to naught. 2
v. t. - To loose; to open; to take to piece; to unfasten; to untie; hence, to unravel; to solve; as, to undo a knot; to undo a puzzling question; to undo a riddle. 2
v. t. - To bring to poverty; to impoverish; to ruin, as in reputation, morals, hopes, or the like; as, many are undone by unavoidable losses, but more undo themselves by vices and dissipation, or by indolence. 2
Words formed by adding one letter before or after undo (in bold), or to dnou in any order: