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English definition of “cipher”

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cipher

noun uk   /ˈsaɪ.fər/ us    /-fɚ/

cipher noun (SECRET LANGUAGE)

[C or U] ( also cypher) a system of writing that prevents most people from understanding the message: The message was written in cipher.
Synonym

cipher noun (PERSON)

[C] formal disapproving a person or group of people without power, but used by others for their own purposes, or someone who is not important: The interim government is a mere cipher for military rule.

cipher noun (NUMBER)

[C] US old-fashioned a zero: If you have no children, enter a cipher in the space on the form.
Translations of “cipher”
in Spanish código…
in French code…
in German die Chiffre…
in Chinese (Traditional) 密語, 密碼, 暗號…
in Chinese (Simplified) 密语, 密码, 暗号…
(Definition of cipher from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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