back·up

back·up
/ˈbækˌʌp/ noun, pl -ups
1 a [count] : a person or thing that can be used to replace or support another person or thing

His role on the team is to be a backup to the regular quarterback.

We have an extra radio as a backup in case this one doesn't work.

— often used before another noun

a backup quarterback

We need a backup plan in case of emergency.

1 b [noncount] : help or support provided by additional people or things

The policeman called for backup [=called for other police to come and help him] because the suspect was carrying a gun.

We have an extra radio for backup.

He provides backup for the regular quarterback.

2 [count] US : a situation in which the flow of something (such as traffic) becomes blocked

There was a traffic backup [=(Brit) tailback] for miles on the road because of the accident.

There was a backup [=blockage] in the drain.

3 [noncount] : a musical part that is sung to support the main singer

She sang backup on his CD.

— often used before another noun

a backup singer

4 [count] : a copy of information stored on a computer

Be sure to make a backup of your work.

— often used before another noun

a backup file/copy

; also : the act or process of making such a copy

It may take some time for the backup to be complete.

— see also back up at back, 4

Useful english dictionary. 2012.

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Look at other dictionaries:

  • back — back …   Dictionnaire des rimes

  • back — back1 [bak] n. [ME bak < OE baec; akin to ON bak, OHG bahho] 1. the part of the body opposite to the front; in humans and many other animals, the part to the rear or top reaching from the nape of the neck to the end of the spine 2. the… …   English World dictionary

  • Back — (b[a^]k), v. t. [imp. & p. p. {Backed} (b[a^]kt); p. pr. & vb. n. {Backing}.] [1913 Webster] 1. To get upon the back of; to mount. [1913 Webster] I will back him [a horse] straight. Shak. [1913 Webster] 2. To place or seat upon the back. [R.]… …   The Collaborative International Dictionary of English

  • back — ► NOUN 1) the rear surface of the human body from the shoulders to the hips. 2) the corresponding upper surface of an animal s body. 3) the side or part of something away from the viewer. 4) the side or part of an object that is not normally seen …   English terms dictionary

  • Back — (b[a^]k), n. [AS. b[ae]c, bac; akin to Icel., Sw., & LG. bak, Dan. bag; cf. OHG. bahho ham, Skr. bhaj to turn, OSlav. b[=e]g[u^] flight. Cf. {Bacon}.] 1. In human beings, the hinder part of the body, extending from the neck to the end of the… …   The Collaborative International Dictionary of English

  • Back — Back, adv. [Shortened from aback.] 1. In, to, or toward, the rear; as, to stand back; to step back. [1913 Webster] 2. To the place from which one came; to the place or person from which something is taken or derived; as, to go back for something… …   The Collaborative International Dictionary of English

  • Back — eines kleineren Schiffes Back eines Massengutfrachters Back ist ein s …   Deutsch Wikipedia

  • Back — Back, a. 1. Being at the back or in the rear; distant; remote; as, the back door; back settlements. [1913 Webster] 2. Being in arrear; overdue; as, back rent. [1913 Webster] 3. Moving or operating backward; as, back action. [1913 Webster] {Back… …   The Collaborative International Dictionary of English

  • back — [bæk] verb [transitive] 1. to support someone or something, especially by giving money or using your influence: • The board backed Mr Standley, who plans to cut costs. • Shareholders have backed a plan to build a second plant. 2. FINANCE if …   Financial and business terms

  • Back on My B. S. — Back on My B.S. Studioalbum von Busta Rhymes Veröffentlichung 2009 Label Flipmode Records / Universal Motown Form …   Deutsch Wikipedia

  • Back-up — auch: Back|up 〈[bæ̣kʌp] n. 15 oder m. 6; EDV〉 Sicherungskopie von Computerdateien auf einem zweiten Speichermedium (neben der Festplatte) od. in komprimierter Form [<engl. backup „Rückendeckung, Unterstützung; Sicherheitskopie“] * * * Back up …   Universal-Lexikon

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