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False cognate · False friend

idiom

Does NOT mean idioma

It means a fixed expression / saying

Written by Bryan López, English teacher · Updated September 2026

What it's NOT

idiom does NOT translate to idioma.

To say "idioma" in English, use language.

What it IS

idiom means a fixed expression / saying.

Why it's confused

Spanish "idioma" is a language, a people's linguistic system. English "idiom" is an expression whose meaning can't be deduced from its individual words. A language in English is "language."

How it's pronounced

idiomÍ-di-om

Tap the button to hear the real pronunciation.

Examples of correct use

English

"Break a leg" is a common English idiom.

Spanish

"Break a leg" es un modismo común en inglés.

English

Idioms are hard to translate word by word.

Spanish

Los modismos son difíciles de traducir palabra por palabra.

A trick to remember it

Idiom = a fixed expression/saying. The language you speak (Spanish "idioma") = language.

Mini quiz

"English idiom" means...

Frequently asked questions

What does "idiom" mean in English?

"Idiom" means "a fixed expression / saying". It looks a lot like "idioma", which is exactly why it gets confused, but they don't mean the same thing.

How do you say "idioma" in English?

To say "idioma" in English, use "language". If you use "idiom" instead, you would actually be saying "a fixed expression / saying".

Do "idiom" and "idioma" mean the same thing?

Spanish "idioma" is a language, a people's linguistic system. English "idiom" is an expression whose meaning can't be deduced from its individual words. A language in English is "language."

Other confusing false friends

  • Introduce

    Not introducir, it's to present someone to another person

  • Lecture

    Not lectura, it's a talk / class given by an expert

  • Realize

    Not realizar, it's to suddenly become aware

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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