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"Castillos" is a form of "castillo", a noun which is often translated as "castle". "Palacios" is a form of "palacio", a noun which is often translated as "palace". Learn more about the difference between "castillos" and "palacios" below.
el castillo(
kahs
-
tee
-
yoh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (stronghold)
a. castle
El castillo de Neuschwanstein fue usado como modelo para uno de los castillos de Disney World.Neuschwanstein Castle was used as the model for one of the Disney World castles.
b. fort
El Castillo de San Marcos, a veces llamado Fort Saint Marc, fue construido en el siglo XVII.The Castillo de San Marcos, sometimes called Fort Saint Marc, was built in the 17th century.
el palacio(
pah
-
lah
-
syoh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (royal home)
a. palace
En Londres vimos la caravana de la Reina saliendo del palacio de Buckingham.In London, we saw the Queen's motorcade leaving Buckingham Palace.
a. palace
El hotel ocupa un hermoso palacio colonial que fue construido en el siglo XVII.The hotel is situated in a beautiful colonial palace that was built in the 17th century.
b. mansion
Mis primos viven en un palacio de diez habitaciones, cinco salas y cuatro comedores.My cousins live in a mansion that has ten bedrooms, five living rooms, and four dining rooms.
a. center (United States)
Regionalism used in the United States
Voy a ir a una conferencia en el Palacio de Convenciones.I'm going to attend a conference at the Convention Center.
b. centre (United Kingdom)
Regionalism used in the United Kingdom
La competencia de patinaje se realizará en el Palacio de los Deportes.The skating competition will be held at the Sports Centre.