cipher
noun
a secret method of writing or recording data, such as by substituting or adding letters or numbers, using specially formed symbols, or the like; code.
ciphers
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pluralof cipher.plural
The grammatical form denoting more than one person, place, thing, or idea.
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present tense formof cipher (3rd person singular).present tense
Used to describe things happening now or regularly.
ciphernouna secret method of writing or recording data, such as by substituting or adding letters or numbers, using specially formed symbols, or the like; code.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Researchers were already developing AI models to break ciphers, but the public release of state-of-the-art generalist tools has unleashed dozens of new solutions.
From Barron's ● Oct. 16, 2026
The love he once had for baseball he now felt for a strange and mysterious place that was as old as history itself yet as secretive as the classical ciphers.
From Los Angeles Times ● May 4, 2026
They were challenged to embed hidden codes, and ciphers into their designs.
From BBC ● Dec. 10, 2025
But I am calling for a little more emotional clarity from the adults who condemn these students for being imperfect ciphers of morality.
From Slate ● May 2, 2024
Handlers and spies were divided into groups called circuits, with each circuit using its own ciphers.
From "The Woman All Spies Fear" by Amy Butler Greenfield
