Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “backup”

backup

noun [C or U] (also back-up)     /ˈbækʌp/
a person , plan , piece of equipment , etc. that you can use to replace another if necessary : I use my other email account as a backup. The company is exploring alternative sources to provide backup for materials when the suppliers cannot deliver . Remember that your colleagues are your backup system when things go wrong .
IT an extra copy of the information on a computer , that is stored separately : Keep a backup of your data in case a drive fails .
(Definition of backup noun from the Cambridge Business English Dictionary © Cambridge University Press)
Focus on the pronunciation of backup

More Business English definitions for “backup”

Definitions of “backup” in other dictionaries

Word of the Day

gastronomy

the art and knowledge involved in preparing and eating good food

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More