noun [U,C]
1 extra help or support that you can get if necessary:
The police had back-up from the army. * We can use him as a back-up if one of the other players drops out. * a back-up power supply
2 (computing) a copy of a file, etc. that can be used if the original is lost or damaged:
Always make a back-up of your work. * a back-up copy
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About this entry
This is a English–English dictionary entry.
Sourced from Main Dictionary in Lughet's collection.
This word also appears under other sources in Lughet's collection — see the list below.
This entry for back-up is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Does back-up appear elsewhere on Lughet?
Yes — back-up appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.
