How to Say "substitution" in Spanish
The most common Spanish word for “substitution” is “reemplazo” — use 'reemplazo' when referring to the general act of replacing an object or item with another, like a part or a piece of equipment..
reemplazo
/reh-em-PLAH-soh//re.emˈpla.so/

Examples
Necesitamos un reemplazo para la bombilla de la cocina.
We need a replacement for the kitchen light bulb.
Ella es el reemplazo temporal de nuestro profesor.
She is our teacher's temporary substitute.
El reemplazo de la pieza vieja mejoró el rendimiento del coche.
The replacement of the old part improved the car's performance.
Noun Gender
Even when referring to a woman who is a substitute, the word remains masculine: 'el reemplazo'.
Using 'de'
To say what is being replaced, always follow the word with 'de' (e.g., 'el reemplazo de la batería').
Wrong Gender
Mistake: “La reemplazo”
Correction: El reemplazo. Even though it ends in 'o' and might refer to a woman, it's always a masculine noun.
sustitución
Examples
El entrenador pidió una sustitución en el segundo tiempo.
The coach asked for a substitution in the second half.
Reemplazo vs. Sustitución
Related Translations
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