BACK UP


Meaning of BACK UP in English

1.

If someone or something backs up a statement, they supply evidence to suggest that it is true.

Radio signals received from the galaxy’s centre back up the black hole theory...

= support

PHRASAL VERB : V P n (not pron) , also V n P

2.

If you back up a computer file, you make a copy of it which you can use if the original file is damaged or lost. ( COMPUTING )

Make a point of backing up your files at regular intervals...

I get so annoyed when I lose work because I’ve forgotten to back it up.

PHRASAL VERB : V P n (not pron) , V n P

3.

If an idea or intention is backed up by action, action is taken to support or confirm it.

The Secretary General says the declaration must now be backed up by concrete and effective actions...

It is time the Government backed up its advert campaigns with tougher measures.

PHRASAL VERB : be V-ed P , V P n (not pron) , also V n P

4.

If you back someone up , you show your support for them.

His employers, Norfolk social services, backed him up.

= support

PHRASAL VERB : V n P , also V P n (not pron)

5.

If you back someone up , you help them by confirming that what they are saying is true.

The girl denied being there, and the man backed her up.

PHRASAL VERB : V n P , also V P n (not pron)

6.

If you back up , the car or other vehicle that you are driving moves back a short distance.

Back up, Hans...

A police van drove through the protesters and backed up to the front door of the house.

= reverse

PHRASAL VERB : V P , V P to n

7.

If vehicles back up , they form a line of traffic which has to wait before it can move on.

Traffic into London on the M11 was backed up for several miles.

PHRASAL VERB : V-ed P , also V P , V P n (not pron)

8.

If you back up , you move backwards a short distance.

I backed up carefully until I felt the wall against my back...

She backed up a few steps.

PHRASAL VERB : V P , V P amount

9.

see also backup

Collins COBUILD Advanced Learner's English Dictionary.      Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне.