Back up - definition, transcription

Amer.  |bæk ˈʌp|
Brit.  |bæk ˈʌp|


- give moral or psychological support, aid, or courage to (syn: support)
- move backwards from a certain position
- establish as valid or genuine(syn: back)

Can you back up your claims?

- make a copy of (a computer file) especially for storage in another place as a security copy

You'd better back up these files!

- become or cause to become obstructed (syn: choke, clog, congest, foul)


The flood water of the storm backed up the pipes for the dirty water.

Many ships are backed up at the entrance to the harbour.

Lines of vehicles were backed up for several kilometres because of the accident.

Can you back up your claims?

You'd better back up these files!

The price of gasoline has crept back up to three dollars a gallon.

His failure to back up the computer files had disastrous consequences.

Back up, men, we need all the help we can get.

We need further facts to back up our statements.

He crept back up the stairs, trying to avoid the ones that creaked.

She looked back up the grassy slope.

the long trudge back up the hill

There's no evidence to back up his accusations.

Make sure you back up.

These devices can back up the whole system.

See also:  WebsterWiktionaryLongman