Cipher

/ˈsaɪfər/

nounIntermediate📊CommonCommunication
3 meanings2 questions

Definitions

3 meanings
1

A method of secret writing or a secret message written using such a method.

/ˈsaɪfər/

nounneutralIntermediate
Communication

A secret or disguised way of writing.

The message was written in a complex cipher.

💡 Simply: Imagine a secret code only spies use to send hidden messages. That's a cipher!

👶 For kids: A secret code to keep things hidden!

More Examples

2

They cracked the cipher and discovered the enemy's plans.

How It's Used

Cryptography

"The spy used a complex cipher to protect his messages."

History

"Scholars spent years deciphering the ancient cipher."

2

A person or thing regarded as insignificant or unimportant.

/ˈsaɪfər/

nounnegativeIntermediate
Value

Something of little value or meaning; a zero.

He felt like a cipher in the large company.

💡 Simply: If someone's a cipher, it means they don't really matter; it is like they aren't important.

👶 For kids: Someone or something that doesn't matter much.

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2

Her efforts were reduced to a cipher.

How It's Used

Informal

"He felt like a cipher in the grand scheme of things."

Tip:Think 'zero' in mathematical context, representing little value.
3

To convert a message into a secret code using a cipher.

/ˈsaɪfər/

verbneutralIntermediate
Action

To encode or encrypt in a cipher.

They ciphered the message using a substitution cipher.

💡 Simply: To use a secret code to write messages that no one but you can read.

👶 For kids: To write a secret message in a code.

More Examples

2

The data was ciphered before transmission.

How It's Used

Cryptography

"The military personnel ciphered their messages to avoid interception."

Tip:Think of encoding or encrypting information.

From Middle French chiffre, from Arabic sifr "zero," ultimately from Proto-Semitic *ṣāphara "to be empty, void."

The word 'cipher' has a rich history, evolving from its mathematical origins (zero) to its modern meaning as a secret code.

Memory tip

Think 'cipher' as 'cypher' – like a secret code to decipher.

Word Origin

Original meaning

"zero, empty"

Base: cipher
break a cipherdecipher a ciphercomplex cipher

Common misspellings

cypher

Usage

20%Spoken
80%Written