[verb uhp-deyt, uhp-deyt; noun uhp-deyt]

verb (used with object), up·dat·ed, up·dat·ing.

to bring (a book, figures, or the like) up to date as by adding new information or making corrections: to update a science textbook.
Computers. to incorporate new or more accurate information in (a database, program, procedure, etc.).
to bring (a person, organization, etc.) up to date on a particular subject: The magazine article will update you on the international situation.


an act or instance of updating: to make an update in a financial ledger.
information or data used in updating.
an updated version, model, or the like.

Origin of update

First recorded in 1940–45; up- + date1
Related formsup·dat·a·ble, adjectiveup·dat·er, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of update

British Dictionary definitions for update


verb (ʌpˈdeɪt) (tr)

to bring up to date

noun (ˈʌpˌdeɪt)

the act of updating or something that is updated
Derived Formsupdateable, adjectiveupdater, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for update

1948, in reference to information, 1952 in reference to persons, from up + date (v.1). Related: Updated; updating. The noun is attested from 1967.

Online Etymology Dictionary, © 2010 Douglas Harper