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

Examples
Este descuento no es aplicable a productos ya rebajados.
This discount is not applicable to items already on sale.
Las leyes locales son aplicables a todos los residentes.
Local laws are applicable to all residents.
Debemos determinar si esta teoría es aplicable a nuestro experimento.
We must determine if this theory is applicable to our experiment.
Gender Equality
This word ends in -e, which means it stays exactly the same whether you are talking about a masculine or feminine thing. For example: 'un código aplicable' and 'una regla aplicable'.
The 'a' Connection
When you want to say who or what something applies to, always use the word 'a' (to) after 'aplicable'. Think of it as 'applicable TO'.
Confusing with 'aplacable'
Mistake: “Usar 'aplacable' para leyes.”
Correction: Use 'aplicable'. 'Aplacable' means someone who can be calmed down (from 'aplacar').
Gender Agreement
Mistake: “una ley aplicabla”
Correction: una ley aplicable (the ending doesn't change to 'a' for feminine words).
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