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How to Say ‘One day’ in Mexican Spanish

Un día

oon DEE-ah

[oon DEE-ah]

💬 Usage Tip: Can mean “one day” in the future or “one day” in a story, depending on context.

🇲🇽 In Mexico: In family talk, un día often introduces a warm plan or hopeful promise.

Phrase Breakdown

Un

[oon]

one / a

Here un means a, introducing a time expression.

Example

Un día voy a aprender tu receta.

One day I am going to learn your recipe.

día

[DEE-ah]

day

A unit of time; in un día it can mean one day or someday depending on context.

Example

Un día cocinamos juntos en tu casa.

One day we cook together at your house.

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