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2017 Word of the Year

backup

[bak-uhp] /ˈbækˌʌp/
noun
1.
a person or thing that supports or reinforces another.
2.
a musician or singer or group of musicians or singers accompanying a soloist:
a singer with a three-man backup that plays cello, bass, and guitar.
3.
an overflow or accumulation due to stoppage, malfunctioning, etc.:
a sewage backup; a backup of cars at the tollbooth.
4.
a person, plan, device, etc., kept in reserve to serve as a substitute, if needed.
5.
Computers.
  1. a copy or duplicate version, especially of a file, program, or entire computer system, retained for use in the event that the original is in some way rendered unusable.
  2. a procedure to follow in such an event.
6.
Bowling. a ball that curves in a direction corresponding to the bowling hand of the bowler.
adjective
7.
(of a person, plan, device, etc.) held in reserve as a substitute if needed:
a backup driver; a backup generator.
8.
performing a secondary or supporting function:
A drummer and guitarist are the singer's backup musicians.
Origin of backup
1775-1785
1775-85, Americanism; noun use of verb phrase back up
Can be confused
back up, backup.
Usage note
See login.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Word Origin and History for backup

see back up.

Online Etymology Dictionary, © 2010 Douglas Harper
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16
20
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