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"Reino" is a form of "reino", a noun which is often translated as "kingdom". "Cielo" is a noun which is often translated as "sky". Learn more about the difference between "cielo" and "reino" below.
el cielo()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (firmament)
2. (religious)
4. (darling)
a. angel
Mi primo es un cielo; siempre quiere ayudar.My cousin is an angel; he's always eager to help.
5. (anatomy)
el reino()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (territory)
a. kingdom
El príncipe salió con sus caballeros a ver los límites de su futuro reino.The prince went out with his knights to see the bounds of his future kingdom.
b. realm (literary)
A word or phrase restricted in usage to literature or established writing (e.g., sex, once upon a time).
Los reclutas eran fieles a la Corona y dispuestos a dar la vida en defensa del reino.The recruits were loyal to the Crown and prepared to lay their lives down in defense of the realm.