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"In case" is a conjunction which is often translated as "por si acaso", and "in case of" is a phrase which is often translated as "en caso de". Learn more about the difference between "in case" and "in case of" below.
in case(
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)A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
1. (if)
a. por si acaso
In case you didn't know, they've canceled classes because of the snowstorm.Por si acaso no lo sabías, cancelaron las clases a causa de la tormenta de nieve.
a. por si
You'd better take a coat in case it gets cold out.Te conviene llevar un abrigo por si refresca.
A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
in case of(
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)A phrase is a group of words commonly used together (e.g., once upon a time).
a. en caso de
The sign said, "In case of emergency, break glass."El letrero decía, "En caso de emergencia, romper el vidrio".
a. por si
They were advised to change their money into dollars in case of a currency devaluation.Les aconsejaron cambiar su dinero en dólares por si había una devaluación de la moneda.
