In that sense, "region" designated any state, country or nation (all previously used terms that designated the diverse territories of the Spanish Empire or under the king of Spain), regardless of their political and administrative nature of the territory, whereas "kingdom" was reserved to the particular State, country or nation governed by a monarch. Today, the concept of "region" does not refer to a particular political entity, but alludes to regional geography. Within the dictatorship, the term had a centralizing connotation and not simply a geographical meaning.
In that regard, "region" encompassed any state, country or nation (all previously used terms referring to various territories of the Spanish Empire or under the king of Spain), irrespective of their political and administrative status, whereas "kingdom" was reserved for a specific state, country or nation ruled by a monarch. Currently, the concept of "region" does not pertain to a particular political entity but rather refers to regional geography. Within the dictatorship, the term had a centralizing significance beyond mere geographical meaning.