How to Say "kingdom" in Spanish
The Spanish word for “kingdom” is “reino” — A2 level. This is a very common word in everyday Spanish.

Examples
El rey gobernó el reino durante cincuenta años.
The king ruled the kingdom for fifty years.
Buscamos un reino de paz y justicia para todos los ciudadanos.
We seek a realm of peace and justice for all citizens.
España fue un reino muy poderoso en el siglo XVII.
Spain was a very powerful kingdom in the 17th century.
Masculine Noun Rule
Since 'reino' ends in 'o', it is a masculine word. Always use 'el' or 'un' before it: 'el reino' (the kingdom), 'un reino' (a kingdom).
Confusing Noun and Verb
Mistake: “Using 'reino' when you mean the verb 'to reign' (reinar).”
Correction: Remember 'reino' (noun) is the place. If you want to say 'I reign,' you use the verb form 'Yo reino,' which looks the same but functions differently.
Other Meanings of “reino”
“reino” can also mean:
- biological classification (taxonomy)(C1, formal)
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