backup

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backup

  • /ˈbækˌʌp/

Where it comes from

Deverbal from back up.

noun backups · back-up

  1. countable, uncountable A reserve or substitute. If the goalkeeper is injured, we have a backup.

    Similar: stand-in, substitute

  2. countable, uncountable A copy of a file or record, stored separately from the original, that can be used to recover the original if it is damaged or destroyed. After the power failure, we had to restore the database from backup.
  3. countable, uncountable An accumulation of material caused by a (partial) obstruction or (complete) blockage of the flow or movement of the material, or an accumulation of material that causes an overflow due to the flow being greater than the maximum possible flow. The accident caused a mile-long backup on the highway.

    Similar: tailback, line

  4. uncountable Reinforcements. He's got a gun! You'd better send for backup.
  5. broadly, uncountable Any support or extra help. Shaman: My patience is tested, but Uvenk invokes correctly. Grunt, who is your krantt? Your allies willing to kill and die on your behalf? Shepard: How is a candidate tested if he brings backup on his Rite of Passage? Shaman: Not every krogan can be the strongest warrior, but each must inspire his p
  6. uncountable Accompaniment. Debbie Ahn, on piano, provided some mesmerizing back-up and many fiery, on-target solos.
  7. uncountable Corroboration. Pg. 206 on Yudit's comments on the feminists of Tel Aviv, "... and now they are translating Our Bodies Ourselves into Hebrew, leaving out the section on gays" was misinformed, a statement made without authoratative ^([sic]) backup in 1979 about a book first published in 1982.

Similar: reserve, spare

adjective back-up

  1. not comparable Standby, reserve or extra. I am only a backup player.

    Similar: extra, standby

  2. not comparable That is intended as a backup. Make a backup copy of that file.
  3. not comparable Supporting, reinforcing; (music) of or related to accompaniment

    Similar: backing

Similar: reserve, spare

verb backups · backupping · backupped · back-up

  1. alternative, nonstandard Alternative form of back up We have two methods for backupping: the first one is writing the contents of disks onto magnetic tapes and the other is making a copy of the contents of disks on the disk of the mainframe computers of the laboratory.

Thesaurus

Closest in meaning: fill-in, substitute, stand-in, relief, backup man, computer backup, backstop, back-up, safeguard, safeguarding, protection, booster, preservation, back, augmentation, reverse

noun

Similar: reserve, spare

adjective

Similar: reserve, spare

Translations

Every language

noun reserve

Españolrespaldo
日本語予備 yobi, 控え hikae, 補欠 hoketsu
Françaisremplaçant
DeutschUnterstützung, Deckung, Ersatz
Italianoriserva, sostituto
Русскийрезе́рв rezérv, дублёр dubljór
עבריתגיבוי gibui

noun copy of file or record

Españolcopia de seguridad, copia de reserva/respaldo
한국어백업 baegeop
日本語バックアップ bakkuappu
中文備份 /备份 bèifèn
Portuguêsbackup, becape, cópia de segurança, cópia de reserva
Françaissauvegarde
DeutschDatensicherung, Backup, Reservekopie, Sicherheitskopie, Sicherungskopie
Italianobackup, copia di riserva, copia di sicurezza
Ελληνικάαντίγραφο ασφαλείας antígrafo asfaleías
Русскийрезе́рвная ко́пия rezérvnaja kópija, бэка́п bɛkáp, резе́рвное копи́рование rezérvnoje kopírovanije
עבריתגיבוי gibui

adj standby, reserve or extra

Españolde reserva
Portuguêsreserva
Françaisremplaçant
DeutschErsatz-, Hilfs-
Русскийрезе́рвный rezérvnyj, запасно́й zapasnój

adj intended as backup

Portuguêsbackup
Françaisde sauvegarde

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Cite this
MLA

"backup." Wiktionary, via Micwyn, micwyn.com/word/backup. Accessed 6 Nov. 2026.

APA

backup. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/backup

Chicago

"backup." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/backup.

BibTeX
@misc{backup_2026,
  title = {backup},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/backup},
  urldate = {2026-11-06}
}