upgrade Meaning in the Cambridge English Dictionary
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Meaning of “upgrade” in the English Dictionary

"upgrade" in British English

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upgradeverb [T]

uk   us   /ʌpˈɡreɪd/
B2 to ​improve the ​quality or ​usefulness of something, such as a ​machine or a ​computerprogram, or give a ​person a more ​importantjob or ​state that ​theirjob is more ​important than it was in the past: It's very ​simple to upgrade the ​indexingsoftware. There were no ​seatsleft in ​economy so we were upgraded tobusinessclass.
Opposite
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upgradenoun [C]

uk   us   /ˈʌp.ɡreɪd/
B2 a ​piece of ​software or ​equipment that ​improves the ​quality or ​usefulness of a ​computer or ​machine: a ​hardware upgrade The upgrade to ​version 5.0 ​costs $395.
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(Definition of upgrade from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"upgrade" in American English

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upgradeverb [T]

 us   /ˌʌpˈɡreɪd/
to ​improve the ​quality or ​usefulness of something, or to ​raise something or someone to a ​higherposition or ​rank: If you ​want to ​raiserents, you have to upgrade the ​housing first. They’re ​spending more than $4 million next ​year to upgrade ​computersystems. In 1992 the ​college was upgraded to a ​university. We were upgraded from ​tourist to ​businessclass on ​ourflight to London.
(Definition of upgrade from the Cambridge Academic Content Dictionary © Cambridge University Press)

"upgrade" in Business English

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upgradeverb [T]

uk   us   /ʌpˈɡreɪd/
to ​improve something so that it ​works better or is more ​effective: It's quite simple to upgrade the ​indexingsoftware. All the entrances to the ​building have been upgraded with ramps and handrails.
IT to get new ​computers or other ​equipment that is better than you had before: So much of our ​business is now ​online we had to upgrade our entire ​system. The ​network is being upgraded.
HR to give a ​person a more important ​job or to ​state that their ​job is more important than it was before: upgrade sb to sth Congratulations, I hear you've been upgraded to ​divisionalmanager.
FINANCE to ​state that something such as a ​company is likely to ​produce more ​profit or ​growth, to be better able to ​pay back ​debt, etc. than was previously ​thought: upgrade a forecast/outlook/expectation Analysts had hoped to upgrade their ​earningsforecasts for the ​group.upgrade a rating/status The retailer's ​stockhit a 52-week high after Morgan Stanley upgraded its ​rating on the ​company.
TRANSPORT to get better ​travelarrangements than you originally ​paid for: upgrade sth (from sth) to sth Our ​planetickets were upgraded to ​businessclass. We will upgrade your ​rentalcar from mid-size to full-size.

upgradenoun [C]

uk   us   /ˈʌpɡreɪd/
an ​improvement in something: All our ​office furniture ​needs a ​major upgrade.
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IT a ​piece of ​software or ​equipment that ​improves how well a ​computer or ​machineworks: The basic ​software is ​free but you ​pay for any upgrades.an upgrade to sth The upgrade to ​version 5.0 ​costs $395.
better ​travelarrangements than you originally ​paid for: an upgrade to sth We got a ​free upgrade to first ​class!
(Definition of upgrade from the Cambridge Business English Dictionary © Cambridge University Press)
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