BACK UP • DICTIONARY ONE.COM • Definition of Back up

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/bæk əp/ Listen

Back up

verb

Give moral or psychological support, aid, or courage to. Synonym: support. "Her children always backed her up"

Move backwards from a certain position. Synonyms: back down, back off.

Establish as valid or genuine. Synonym: back.

Make a copy of (a computer file) especially for storage in another place as a security copy.

Become or cause to become obstructed. Synonyms: choke, choke off, clog, clog up, congest, foul. "The water pipe is backed up" Antonym: unclog.

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"Back up" Quotes from Famous Books

... each other for a half minute or so. It was a look of the utmost friendliness, and then the squirrel went noiselessly back up the tree. It was a good omen, thought Henry, but he still waited with the illimitable patience which is a necessity of the wild. He saw the fire, before which the white men and the chiefs lay sleeping, sink lower and lower. The night remained dark. The heavy ...

— The Keepers of the Trail - A Story of the Great Woods • Joseph A. Altsheler

... turned up as a major in khaki, and said something so rude to his brother-in-law, who was sitting in the corner with Funkelstein, that the latter turned pale and left the room hurriedly. It appeared afterwards that Jack had got his back up against "that blighter Gilbert" because he hadn't done a thing for Dick, who had been at Sandhurst, and was now with his regiment in France. "It wasn't as though the selfish swine had kids of his own ...

— War-time Silhouettes • Stephen Hudson

... likely ter, an' that's facts. Oh, we'll back up ther Hermit, an' thar won't be no trouble 'bout gittin' erway, 'less them varmints behind manages ter hit one o' ...

— Frank Merriwell's Bravery • Burt L. Standish

... take the cover from a box. Sandy stretched himself and yawned—after the fashion of any one who has been sleeping a long time in a cramped position; and without being in the least conscious of it, he sidled up to the arm of the throne and rubbed his back up and down—to test ...

— The Primrose Ring • Ruth Sawyer

... and a sudden suspicion flashed into his eyes, which caused Buck promptly to relinquish all hope of getting any further information from the boy. Evidently he had said the wrong thing and got the fellow's back up, though he could not imagine how. And so, when Jessup curtly proposed that they return to ...

— Shoe-Bar Stratton • Joseph Bushnell Ames

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