Laxi Dictionary

American Dictionary

Define dictionary terms easily in our powerful online English dictionary.

Searching for...

No matching words found

Try a different search term or browse the dictionary

Definition back up in American English

back up phrasal verb

phrasal verb
1

to give support to someone by telling other people that you agree with them

Example

If I ask for more money will you back me up?

Synonyms and related words
support back get behind
2

to show that an explanation or belief is probably true

Example

All the evidence backs up her story.

Synonyms and related words
show prove point to
3

to make a copy of information on your computer

Synonyms and related words
access archive author
4

if traffic backs up, or if it is backed up, the vehicles are in a long line and waiting to continue moving

Example

Cars were backed up for miles.

Example

Traffic is backing up on all routes out of town.

Synonyms and related words
back up bottleneck bumper-to-bumper
4.1

if a toilet, sink, or drain backs up, or if it is backed up, water cannot flow through it because something is blocking it

Synonyms and related words
airlock back up blockage
4.2

if a system backs up, or if it is backed up, it has slowed down or stopped working because there is too much of something for it to deal with

Example

Orders are really backed up this month.

Synonyms and related words
break down go off shut off
5

to move backward a short distance

Example

I need everyone to back up about 10 steps.

Synonyms and related words
back away draw back part
6

to make a car go backward

Example

See if you can back up a little farther.

Example

I'll back the car up the driveway.

Synonyms and related words
back up block in box in
7

used for telling someone to return to something that was said earlier

Example

Back up: didn't you say they had already met?

Synonyms and related words
I’m sorry pardon me excuse me
Definition back up in American English