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Back Up (Verb)

Move backwards from a certain position; "The bully had to back down".

Verbs of walking, flying, swimming.

The driver had to back up his truck after realizing he was going the wrong way on the one-way street.
She refused to back up her claims about the new policy being more efficient.
The suspect had to back up his statement with evidence in court.
The general had to back up his army and regroup after being ambushed by the enemy.
The group of friends had to back up and give the lost child some space to breathe.

Establish as valid or genuine; "Can you back up your claims?".

Verbs of size, temperature change, intensifying, etc..

The police asked for evidence to back up her story about the stolen laptop.
As the CEO of the company, she needs to back up her allegations with concrete data.
Can you back up your claims with credible sources or witness statements?
To file the lawsuit, they need to gather documents to back up their accusation.
He was asked to back up his statements with examples from his own experience.

Make a copy of (a computer file) especially for storage in another place as a security copy; "You'd better back up these files!".

Verbs of sewing, baking, painting, performing.

Before you start using the new software, make sure to back up your important files and folders.
It's essential to back up your phone regularly to avoid losing precious memories.
The company requires employees to back up their work data on the server every week.
If you want to avoid losing your progress, back up your game saves regularly online.
Make sure to back up your entire system to an external hard drive before upgrading the operating system.

Give moral or psychological support, aid, or courage to; "She supported him during the illness"; "Her children always backed her up".

Verbs of political and social activities and events.

His family backed him up through his difficult times after the accident.
The close friends always managed to back each other up in times of need.
She felt confident because her colleagues backed her up during the presentation.
The community came together to back up the local politician's election campaign.
Her children have always backed her up with their unwavering love and support.