English Lexicon

Cipher

/ˈsaɪ.fər/
nounverbCEFR C1 (Advanced)Top #8500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A secret or disguised way of writing; a code used to encrypt and decrypt confidential messages.

    "The spies communicated using a complex cryptographic cipher that baffled enemy intelligence."
  2. 2

    A person or thing of no weight, value, or importance; a nonentity.

    "He felt like a mere cipher in the vast and impersonal corporate bureaucracy."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from Middle English cyfre, via Old French from Medieval Latin cifra, originating from Arabic ṣifr meaning 'empty' or 'zero'. Over centuries, the meaning shifted from the Arabic term for zero to numerical digits generally, then to secret writing or a coded message, and later to a person of no importance.

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