BACKOUT
back out
Verb
- To reverse a vehicle from a confined space.
- He backed out of the garage.
 
 - To withdraw from something one has agreed to do.
- She backed out of organizing the fund-raising.
 
 - To dare someone to not withdraw from a challenge.
 - A betting term from French hazard
 - To undo a change.
- I had to back out the changes made to the computer when it became apparent that they had stopped it working properly.
 
 
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