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.
  •
  • show,
  • certify,
  • validate,
  • vouch for,
  • prove.
  •
  • back away,
  • backtrack.
  •back up (noun)
  • choke,
  • choke off,
  • back down,
  • congest,
  • clog up,
  • back off,
  • support,
  • clog,
  • foul.

• v.

  •move backward (verb)
  • abandon.

• Other synonyms:

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

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.