encryption

noun

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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For people who frequently encounter login interruptions, a dedicated IP may provide a more consistent browsing experience without giving up VPN encryption. — Kurt Knutsson, FOXNews.com, 20 Oct. 2026 Compliance teams establish requirements for access, encryption, retention and sovereignty. — Paul Speciale, Forbes.com, 16 Oct. 2026 And any hacker is more likely to take the easier route, such as hacking someone’s computer to steal their encryption keys, than to try breaking the mathematics protecting them. — Chris Stokel-Walker, Scientific American, 15 Oct. 2026 Starshield uses stronger encryption and specialized terminals for secure communications, but relies on Starlink's extensive satellite network to operate. — Elsa Ohlen, CNBC, 15 Oct. 2026 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 22 Oct. 2026.

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