Definition for Back up:

• to move in a reverse direction; used of vehicles or animals.

Synonyms for Back up:

• n.

  •
  • withdraw,
  • retrogress,
  • retreat,
  • fall back.
  •
  • help,
  • promote,
  • get behind.
  •
  • show,
  • certify,
  • validate,
  • vouch for,
  • prove.
  •
  • carry.
  •
  • back away,
  • backtrack.
  •back up (noun)
  • back off,
  • foul,
  • choke off,
  • choke,
  • clog,
  • clog up,
  • congest,
  • support,
  • back,
  • back down.

• v.

  •change (verb)
  • back.
  •intensify (verb)
  • strengthen.
  •move backward (verb)
  • withdraw,
  • retreat,
  • fall back,
  • abandon.
  •social (verb)
  • support.
  •support (verb)
  • champion,
  • confirm,
  • advance,
  • promote,
  • help,
  • back,
  • pull for,
  • encourage,
  • stand behind.

• Other synonyms:

  •
  • encourage.
  •
  • plunge,
  • uphold,
  • cooperate.
  •
  • run.
  •
  • shift.
  •
  • reverse.
  •
  • carry.
  •defend
  • speak for,
  • stick up for.
  •substitute
  • pinch-hit,
  • substitute,
  • double for,
  • stand in for,
  • act for.
  •Other relevant words:
  • clinch,
  • climb,
  • budge,
  • clot,
  • endorse,
  • certify,
  • retire,
  • side with,
  • recrudesce,
  • mainstay,
  • replace,
  • back out,
  • whirl,
  • substantiate,
  • go round,
  • recoil,
  • hold,
  • rise,
  • establish,
  • commission,
  • ascend,
  • elect,
  • demonstrate,
  • hold up,
  • clench,
  • go into reverse,
  • run interference for,
  • circle,
  • Upbear,
  • stay,
  • countermarch,
  • buoy up,
  • wane,
  • abate,
  • countenance,
  • crutch,
  • represent,
  • keep afloat,
  • affirm,
  • change place,
  • descend,
  • reverse,
  • aid and abet,
  • double for,
  • bolster up,
  • speak for,
  • shy away,
  • stiffen,
  • validate,
  • retrogress,
  • go to bat for,
  • back,
  • promote,
  • keep in countenance,
  • come after,
  • help,
  • confirm,
  • go back,
  • ensure,
  • stream,
  • front for,
  • promise,
  • substitute,
  • subside,
  • encourage,
  • accredit,
  • pull for,
  • sustain,
  • upkeep,
  • stir,
  • shore up,
  • recede,
  • carry,
  • abandon,
  • second,
  • probate,
  • withdraw,
  • fall behind,
  • approve,
  • deputize,
  • move over,
  • appear for,
  • trail behind,
  • further,
  • spin,
  • supplant,
  • back away,
  • act for,
  • sink,
  • run,
  • subscribe,
  • retreat,
  • be answerable for,
  • revert,
  • strengthen,
  • stand in for,
  • understudy,
  • uphold,
  • go backwards,
  • get behind,
  • return,
  • verify,
  • fall back,
  • move back,
  • underwrite,
  • shoulder,
  • Underset,
  • shore,
  • pillow,
  • ebb,
  • underpin,
  • change,
  • rotate,
  • consolidate,
  • progress,
  • bear out,
  • nominate,
  • insure,
  • buttress,
  • underlie,
  • Underbrace,
  • champion,
  • assist,
  • indorse,
  • shift,
  • subsidize,
  • prove,
  • turn tail,
  • cushion,
  • bear,
  • prop,
  • soar,
  • lend support,
  • sanction,
  • stick by,
  • gyrate,
  • pinch-hit,
  • stand behind,
  • travel,
  • show,
  • trail,
  • brace,
  • bear witness to,
  • vouch,
  • cooperate,
  • double back,
  • get over,
  • abet,
  • advance,
  • answer for,
  • backtrack,
  • steady,
  • testify to,
  • move,
  • document,
  • recognize,
  • authorize,
  • substitute for,
  • undergird,
  • bolster,
  • attest,
  • backpedal,
  • reinforce,
  • vote,
  • guarantee,
  • vouch for,
  • corroborate,
  • haul up,
  • fortify,
  • backwater,
  • mount,
  • lag behind,
  • keep up,
  • take sides with,
  • warrant,
  • follow,
  • subvention,
  • assure,
  • ratify,
  • authenticate,
  • cradle,
  • stick up for,
  • plunge,
  • flow,
  • maintain,
  • bear up,
  • circumstantiate,
  • regress.

Antonyms for Back up:

• v.

  • move backward
    pursue, forge, defend, continue.

Homophones for Back up:

• basify, bakeshop, beach pea, booze-up, Bahia Piassava, bioscope, bushbaby, busboy, beg off, bush poppy, biochip, bush baby, busby, buggy whip, bush pea, back off, busy bee, buck up, book up, buzz off, bishop, box up, bagpipe, bugaboo, bookshop, backup.

Hypernym for Back up:

• v.

  • social
    further, assist, aid, help, promote, second, endorse, root, patronise, back, frequent, boost, patronize, indorse, encourage, advance, buy at, shop at, sponsor, undergird, shop.

Hyponym for Back up:

• v.

  • change
    corroborate, support, affirm, sustain, substantiate, confirm.
  • creation
    copy, re-create.