English dictionary



Hint: Question mark (?) is a wildcard. Question mark substitutes one character.

English verb: back up

1. back up (social) give moral or psychological support, aid, or courage to


SamplesShe supported him during the illness.
Her children always backed her up.


ExamplesSam cannot back up Sue


Synonymssupport


Pattern of useSomebody ----s something.
Somebody ----s somebody.
Something ----s somebody.
Something ----s something


Narrower (hyponym)advance, aid, assist, back, boost, buy at, encourage, endorse, frequent, further, help, indorse, patronise, patronize, promote, second, shop, shop at, sponsor, sponsor, undergird

2. back up (motion) move backwards from a certain position


SamplesThe bully had to back down.


Synonymsback down, back off


Pattern of useSomething ----s.
Somebody ----s


Broader (hypernym)draw back, move back, pull away, pull back, recede, retire, retreat, withdraw

3. back up (change) establish as valid or genuine


SamplesCan you back up your claims?.


Synonymsback


Pattern of useSomebody ----s something.
Something ----s something


Broader (hypernym)affirm, confirm, corroborate, substantiate, support, sustain

4. back up (creation) make a copy of (a computer file) especially for storage in another place as a security copy


SamplesYou'd better back up these files!.


Pattern of useSomebody ----s something


Broader (hypernym)copy, re-create


Domain categorycomputer, computing device, computing machine, data processor, electronic computer, information processing system

5. back up (contact) become or cause to become obstructed


SamplesThe leaves clog our drains in the Fall.
The water pipe is backed up.


Synonymschoke, choke off, clog, clog up, congest, foul


Pattern of useSomething ----s.
Somebody ----s something.
Something ----s something


Broader (hypernym)block, close up, impede, jam, obstruct, obturate, occlude


Narrower (hyponym)block, choke up, crap up, gum up, lug, silt, silt up, stuff


Antonymsunclog









Based on WordNet 3.0 copyright © Princeton University.
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