- UNDID
- Canceled
- Annulled
- Used the backspacer
- Canceled out
- Typed Ctrl-Z, say
- Loosened
- Took apart
- Reversed
- Opened
- Voided
- Nullified
- Reversed the effects of
- Fixed a word-processing error
- Erased, in a way
- Opened, as a blouse
- Brought to naught
- Erased
- Reversed, as an action
- Ruined
- Took back
- Destroyed
- Loosened, as shoelaces
- Overturned
- Took back, in a way
- Opened, as a knot
- Opened, as a tie
- Opened, as a necktie
- Dismantled
- Loosed.
- Brought to ruin.
- Spoiled.
- Disassembled
- Loosened a knot
- Loosened, as a knot
- Disconnected
- Loosened, as a 57-Down
- Disentangled
- Loosened, as laces
- Removed, as a knot
- Reversed the progress of
- Reversed an action
- Detached
- Annulled or erased
- Reversed the effect of
- Dealt a severe blow
- Cancelled
- Opened, in a way
- Unfastened
- Pressed Ctrl Z
- Loosened, say
- Negated the effects of
