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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Since the hijacking, Dallas has upgraded its 173 sirens, installing what the city claims is one of the most advanced encryption systems in the country. CBS News, 17 Nov. 2025 Meta says all partners will offer the same level of end-to-end encryption as WhatsApp. PC Magazine, 14 Nov. 2025 The complete absence of encryption of the satellite links was only one part of the problem, added Levin. Tereza Pultarova, Space.com, 10 Nov. 2025 Those services might include providing an easy way for nonprofits to raise funds, conduct online events and access clear records on donations; as well as provide the best encryption to protect donors’ data. Jeanne Sahadi, CNN Money, 8 Nov. 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 23 Nov. 2025.

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