Usages of por si acaso
Cierra la puerta antes de que empiece la lluvia, por si acaso.
Close the door before the rain starts, just in case.
Quedamos delante del restaurante por si acaso alguien se pierde.
We meet in front of the restaurant just in case someone gets lost.
Ahora la bombilla nueva funciona bien y dejamos la linterna junto al interruptor por si acaso.
Now the new light bulb works well and we leave the flashlight next to the switch just in case.
Elon.io is an online learning platform
We have an entire course teaching Spanish grammar and vocabulary.