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back up

See definition of back up on Dictionary.com
  • verbmove backward
  • verbsupport
  • adj.substitute

synonyms for back up

  • fall back
  • retreat
  • abandon
  • withdraw
  • alternate
  • alternative
  • another
  • stand-in

antonyms for back up

MOST RELEVANT
  • forge ahead
  • continue
  • defend
  • pursue
    Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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    How to use back up in a sentence

    What need to look to right or left when you are swallowing up free mile after mile of dizzying road?
    THE JOYOUS ADVENTURES OF ARISTIDE PUJOLWILLIAM J. LOCKE
    I waited three months more, in great impatience, then sent him back to the same post, to see if there might be a reply.
    THE BOARDED-UP HOUSEAUGUSTA HUIELL SEAMAN
    Most of the men leaped up, caught hold of spears or knives, and rushed out.
    THE GIANT OF THE NORTHR.M. BALLANTYNE
    Some weeks after, the creditor chanced to be in Boston, and in walking up Tremont street, encountered his enterprising friend.
    THE BOOK OF ANECDOTES AND BUDGET OF FUN;VARIOUS
    In less than ten minutes, the bivouac was broken up, and our little army on the march.
    BLACKWOOD'S EDINBURGH MAGAZINE, NO. CCCXXXIX. JANUARY, 1844. VOL. LV.VARIOUS
    Ages back—let musty geologists tell us how long ago—'twas a lake, larger than the Lake of Geneva.
    BLACKWOOD'S EDINBURGH MAGAZINE, VOLUME 60, NO. 372, OCTOBER 1846VARIOUS
    The bride elect rushes up to him, and so they both step down to the foot-lights.
    PHYSIOLOGY OF THE OPERAJOHN H. SWABY (AKA "SCRICI")
    The boys were tumbling about, clinging to his legs, imploring that numerous things be brought back to them.
    THE AWAKENING AND SELECTED SHORT STORIESKATE CHOPIN
    With a suffocating gasp, she fell back into the chair on which she sat, and covered her face with her hands.
    THE PASTOR'S FIRE-SIDE VOL. 3 OF 4JANE PORTER
    I was busy loading the piece when an exclamation of surprise from one of the men made me look up.
    BLACKWOOD'S EDINBURGH MAGAZINE, NO. CCCXXXIX. JANUARY, 1844. VOL. LV.VARIOUS
    SYNONYM OF THE DAY
    OCTOBER 26, 1985
    Choose the synonym for future
    capacitor

    WORDS RELATED TO BACK UP

    • back up
    • double
    • equivalent
    • fill in
    • stand-in
    Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.