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False cognate · False friend

cipher

Does NOT mean cifra

It means a secret code / encryption system

Written by Bryan López, English teacher · Updated September 2026

What it's NOT

cipher does NOT translate to cifra.

To say "cifra" in English, use number / figure.

What it IS

cipher means a secret code / encryption system.

Why it's confused

Spanish "cifra" is a number, a numeric code, or an amount of money. English "cipher" is a secret coding or encryption system. It can also figuratively mean someone unimportant or without influence.

How it's pronounced

cipherSÁI-fer

Tap the button to hear the real pronunciation.

Examples of correct use

English

The message was written in cipher.

Spanish

El mensaje estaba escrito en clave.

English

They cracked the cipher.

Spanish

Descifraron el código.

A trick to remember it

Cipher = a secret code/encryption system. A number (Spanish "cifra") = number/figure.

Mini quiz

"A secret cipher" is...

Frequently asked questions

What does "cipher" mean in English?

"Cipher" means "a secret code / encryption system". It looks a lot like "cifra", which is exactly why it gets confused, but they don't mean the same thing.

How do you say "cifra" in English?

To say "cifra" in English, use "number / figure". If you use "cipher" instead, you would actually be saying "a secret code / encryption system".

Do "cipher" and "cifra" mean the same thing?

Spanish "cifra" is a number, a numeric code, or an amount of money. English "cipher" is a secret coding or encryption system. It can also figuratively mean someone unimportant or without influence.

Other confusing false friends

  • Idiom

    Not idioma, it's a fixed expression / saying

  • Notice

    Not noticia, it's to become aware of / a posted notification

  • Sentence

    Not sentencia, it's a grammatical statement with subject and predicate

More confusing false friends

Library, embarrassed, actually... the full list of words that look the same but mean something different.

View full list

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