noun

cipher

cipher, code, zero, nonentity

The message was written in a complex cipher.

The message was written in a complex cipher.

In this context, he was a mere cipher.

In this context, he was a mere cipher.

((a cipher)) a secret way of writing The spy used a cipher to send messages.

((a cipher)) a person of no importance The dictator's advisors were mere ciphers.

Synonyms: code, cryptogram; (for a person) nonentity

From Arabic 'sifr', meaning 'zero'. The concept of zero was key to early cryptography, leading to the word's modern meaning.

Think of the verb 'to decipher', which means to solve a code. A 'cipher' is the code itself.

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