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"Radio" is a form of "radio", a noun which is often translated as "radio". "Arco" is a noun which is often translated as "arch". Learn more about the difference between "arco" and "radio" below.
el arco(
ahr
-
koh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (shape)
3. (music)
a. bow
Ella produjo un hermoso sonido con el arco de su violín.She produced a beautiful sound with her violin bow.
4. (sports) (Latin America)
Regionalism used in Latin America: all the countries in South America, Central America, and the Caribbean. Does not include Spain.
a. goal
Los jugadores no consiguieron meter ningún balón en el arco.The players couldn't manage to get a ball into the goal.
b. wicket (croquet) (United States)
Regionalism used in the United States
Falta uno de los arcos. Hay que buscarlo para poder empezar el juego.One of the wickets is missing. We need to find it so we can start the game.
a. arch
Tomamos muchas fotos del arco construido en el siglo XVI.We took many pictures of the arch built in the 16th century.
a. arc
Te debes proteger los ojos al mirar un arco eléctrico.You need to protect your eyes when looking at an electric arc.
el radio(
rrah
-
dyoh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (device)
a. radio
Prende el radio que quiero escuchar mi emisora favorita.Turn on the radio, I want to listen to my favorite station.
a. radius
Utiliza el radio del círculo para encontrar su circunferencia.Use the radius of the circle to find its circumference.
4. (chemistry)
a. spoke
Le faltaba un radio a la rueda de atrás de mi bici nueva.The rear wheel of my new bike was missing a spoke.
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).