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cipher

cipher

2 8.9
A message written in a secret code
  • noun
  • /ˈsaɪfər/
  • Specialized
translation icon : mensaje cifrado
  • The children enjoyed learning how to read ciphers during their summer camp activities focused on puzzles.

She never has the the key or the cipher to figure things out.

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Examples

  • The detective found a mysterious cipher hidden in the old manuscript that seemed impossible to decode.

  • To find Mother, the first thing I need to do is leave a cipher in every newspaper she might read.

  • "Is it a code, a cipher of some kind?

    Blog text (33)
  • Using this cipher, we get the following message:

    Blog text (32)
  • You decoded the latest cipher?

  • Cipher's impossible to decode without the key.

  • You begin to suspect that country Z, which has been inimical to your interests for years and may declare war in the near future, has broken your cipher and may be reading your secret mail.

    Blog text (12)
  • The professor explained how to create a cipher to protect sensitive information from interception.

Synonyms

cryptogram
vscipher
3 9.5

A piece of writing in a code that you can solve

is intended to prevent understanding rather than invite solving
ciphertext
vscipher
  • Specialized
1 7.9

Data changed by a code so it cannot be read without a secret key

describes a written secret message, not only technical or digital data
secret writing
vscipher
  • Specialized
1 8.2

A way of writing that uses codes so only certain people can read it

focuses on messages that are hard to read without the key
cypher
vscipher
  • UK
1 8.9

A secret written message that hides the true meaning

refers only to an individual message rather than the whole system
cryptograph
vscipher
9.9

A written message in code that keeps its meaning secret

emphasizes being hard to understand without the key

Antonyms

8 1.0

In a way that is easy to hear or understand

How Secure

data encryption
  • Specialized
1 4.3
cipher
  • Specialized
2 8.9
code
499 4.3
secret writing
  • Specialized
1 8.2
plaintext
  • Specialized
3.9

Surface Forms

cipher singular
ciphers plural

Etymology

Cipher can mean the secret message written in a code, following the same history from Arabic sifr to the idea of hidden signs; a cipher is therefore a message you cannot read without the key.