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to back up
[phrase form: back]
Example
The loyal fans always back up their favorite sports team.
The coach consistently backs up his players, fostering team spirit.
I 'll back up your proposal during the meeting.
02
to move or drive something backward
Transitive
Example
As the puppy approached the unfamiliar object, it got scared and quickly backed up.
03
to confirm that something is true or valid
Transitive: to back up a claim or statement
Example
The witness backed up the testimony with clear recollections.
They backed up the proposal with a detailed project plan.
Historical records can back up the accuracy of the ancient manuscript.
04
to wait in a long line of cars, unable to move because the road is crowded
Intransitive
Example
During rush hour, the city 's streets tend to back up, causing delays for commuters.
The festival attracted large crowds, and the roads quickly started to back up.
Heavy rain led to streets flooding, and traffic started backing up in various areas.
05
to make a copy of computer digital data
Transitive: to back up digital data
Example
I 'll back up my important documents before the software update.
The software prompts users to back up their information regularly.
Make it a habit to regularly back up your important folders.
Example
He used the rearview camera to back up safely in the tight parking space.
07
to reverse or undo one's actions or decisions
Intransitive
Example
I had to back up and fix the mistake I made in the report.
I had to back up and apologize after realizing my mistake.
They chose to back up and remove the controversial statement from the press release.
08
to reconsider or rethink one's previous thoughts or decisions
Intransitive
Example
He had to back up and reconsider his opinion after the discussion.
She backed up after realizing she had missed an important detail.
They backed up and reconsidered their strategy after the first attempt failed.
Example
The loyal fans always back up their favorite sports team.
The coach consistently backs up his players, fostering team spirit.
I'll back up your proposal during the meeting.
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