vs
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"Si" is a form of "si", a conjunction which is often translated as "if". "En caso de que" is a phrase which is often translated as "in the event that". Learn more about the difference between "en caso de que" and "si" below.
en caso de que()
A phrase is a group of words commonly used together (e.g., once upon a time).
a. in the event that
En caso de que el vuelo sea cancelado, pueden tomar el siguiente.In the event that your flight is canceled, you can take the following one.
si()
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
