re·​iden·​ti·​fy (ˌ)rē-ī-ˈden-tə-ˌfī How to pronounce reidentify (audio)
reidentified; reidentifying

transitive verb

: to identify (someone or something) again
Cookies were first cooked up as a convenient way to make return visits to Web sites without having to reidentify yourself or your preferences.Kiplinger's Personal Finance
also : to give a new or different identity to
Reidentified by false names, they can never contact anyone who knew them before … Jet
often + as
… when the work reemerged in 1967 it was sold at Sotheby's as Fuseli's portrait of Cartwright, but it was immediately reidentified as a self-portrait. William L. Pressly
reidentification noun
… the case hinged on the risk of "reidentification," or identifying individuals from apparently anonymized information. Patrick Cain

Examples of reidentify in a Sentence

Recent Examples on the Web The data could be used to reidentify users who sought services from the provider. Mohana Ravindranath, STAT, 3 July 2022 In three of the five cases, the companies' policies did not have clear language about third-party tools that might be used to retarget or reidentify users across the web for marketing. Lily Hay Newman, Wired, 6 Feb. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'reidentify.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1820, in the meaning defined above

Time Traveler
The first known use of reidentify was in 1820

Dictionary Entries Near reidentify

Cite this Entry

“Reidentify.” Dictionary, Merriam-Webster, Accessed 21 Feb. 2024.

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