How to Say "blueprints" in Spanish
The Spanish word for “blueprints” is “planos” — B1 level. This is a very common word in everyday Spanish.

Examples
El arquitecto nos mostró los planos del nuevo edificio.
The architect showed us the blueprints for the new building.
Necesitamos revisar los planos eléctricos antes de empezar la obra.
We need to check the electrical plans before starting the construction.
El director de fotografía usó muchos primeros planos para crear tensión.
The cinematographer used a lot of close-up shots to create tension.
Plural Noun Rule
Since 'planos' is a masculine plural noun, any descriptive words (adjectives) used with it must also be masculine and plural: 'los planos nuevos' (the new blueprints).
Plan vs. Plano
Mistake: “Using 'los planos' when you mean 'the strategy' or 'the intention.'”
Correction: Use 'el plan' (singular) or 'los planes' (plural) for strategies. Use 'los planos' only for technical drawings or visual frames.
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