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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This marks a leapfrog moment — not just for India’s digital infrastructure, but for secure global communications in the post-encryption era. Sol Rashidi, Forbes.com, 28 Jan. 2026 These include cross-platform alerts, frequently changing Bluetooth identifiers, and end-to-end encryption. Aamir Khollam, Interesting Engineering, 26 Jan. 2026 There is, however, a threat on the medium-term horizon that threatens not only Bitcoin but every other type of software that relies on current encryption technology. Jeff John Roberts, Fortune, 21 Jan. 2026 Reliable digital transfer platforms offer privacy and transaction protections through encryption, fraud monitoring, and user verification. Jason Phillips, Kansas City Star, 6 Jan. 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 4 Feb. 2026.

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