regionalen

regionalen is a declined form of the German adjective regional. The base meaning relates to a region or to a region’s characteristics. In German, adjectives are inflected to agree with the gender, number, and case of the nouns they describe, so regionalen appears in several grammatical contexts.

Common uses include:

- Die regionalen Unterschiede (plural, nominative or accusative) after a definite article.

- Den regionalen Unterschieden (plural, dative).

- Dem regionalen Kontext (singular, masculine or neuter, dative).

- Der regionalen Küche (singular, feminine, dative).

- Der regionalen Unterschiede (plural, genitive).

In the plural without a definite article or other determiner, the strong inflection yields regionale Unterschiede (note the -e ending in the plural). The form regionalen is thus a conventional, context-specific ending rather than a standalone noun. It is widely used in official language, journalism, and everyday speech to describe things related to a particular region, such as regional politics, regional cuisine, or regional planning. As a grammatical category, regionalen illustrates how German adjectives flex to convey precise grammatical information about the noun they modify. See also regional, regionalism.