To establish a fact to be true
“Those who agree are given fake traveling papers, as well as a hefty alibi to back up their lying claims.”
To move backward
“For lack of anything constructive to do, he decided to back up the car and park directly in front of the entrance to the alley.”
To make a copy of something as a reserve
“Be sure to back up your old file before overwriting it with the new one, just in case.”
To provide aid or support to someone
“At least he has his best friend, George, there to back him up.”
To strengthen or reaffirm in rank or position
To create a standstill or obstruction
To jam, become congested, or form a tailback
To play a musical accompaniment to
To encourage (a behavior, feeling, relationship or idea) through repeated stimulus
To retrace one's steps or change direction abruptly
To stand in for
To move something backward, either literally or figuratively
To reverse a vehicle backward into a designated parking space
To occur or happen again
To reinforce the strength or sturdiness of
To make a similar or identical version of
Related Words and Phrases
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