Piscina vs. alberca vs. pileta
The three Spanish words piscina, alberca and pileta all translate to swimming pool in English. However, their usage varies based on the region and country where they are used.
Piscina
A1The term piscina is widely used in many Spanish-speaking countries including Spain, Mexico, and most of Central and South America to refer to a swimming pool.
Vamos a nadar en la piscina.
(Let's go swimming in the pool.)
La piscina está llena de agua.
(The pool is full of water.)
Alberca
B1Alberca is another word for a swimming pool but it is typically used in Mexico.
La alberca está muy fría hoy.
(The swimming pool is very cold today.)
Padre limpió la alberca esta mañana.
(Dad cleaned the swimming pool this morning.)
Pileta
B1Pileta is mainly used in Argentina and some parts of Uruguay to refer to a swimming pool.
Esta tarde iremos a la pileta.
(This afternoon we will go to the swimming pool.)
La pileta está desbordada por la lluvia.
(The pool is overflowing because of the rain.)
Summary
While piscina, alberca, and pileta all refer to a swimming pool, their usage differs based on regional dialects. In general terms, piscina is universally understood across Spanish-speaking countries, while alberca is mainly used in Mexico and pileta in Argentina and parts of Uruguay.