encryption

noun

en·​cryp·​tion in-ˈkrip-shən How to pronounce encryption (audio)
en-
plural encryptions
1
: the act or process of encrypting something : a conversion of something (such as data) into a code or cipher
The regulations … make it harder to provide automatic encryption of information as it passes through the dozens of links in a typical Internet connection …Paul Wallich
… a hacker slips into a system, then puts encryption controls in place that locks users out.Elizabeth Millard
2
: a code or cipher produced by encrypting something
Artificial intelligence can decode encryptions that previously could not be cracked.Ana Swanson

Examples of encryption in a Sentence

Recent Examples on the Web
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Windows 11 Pro gives you BitLocker encryption, Smart App Control, and biometric login support to help safeguard sensitive information. PC Magazine, 30 Sep. 2025 After establishing communication on mainstream social platforms, the recruiter often moves the conversation to Meta’s WhatsApp, with its end-to-end encryption and ability to track others in real time. Avery Schmitz, CNN Money, 29 Sep. 2025 Clemens also claims in his suit that school dean Jed Atkins was using the messaging app Signal, known for end-to-end encryption for messages and calls and disappearing messages, to communicate with members of the board. Tabitha Parent, PEOPLE, 29 Sep. 2025 As quantum computers move closer to practical use, today’s encryption becomes increasingly vulnerable. Christopher McFadden, Interesting Engineering, 26 Sep. 2025 See All Example Sentences for encryption

Word History

First Known Use

1953, in the meaning defined at sense 1

Time Traveler
The first known use of encryption was in 1953

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Cite this Entry

“Encryption.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/encryption. Accessed 1 Oct. 2025.

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