Regionalism (noun)

1. A political or cultural perspective, ideology or movement that emphasizes the interests and identity of a particular region or geographical area.
2. A strong attachment or loyalty to a particular region, especially as expressed in political, economic or cultural terms.
3. The promotion or protection of the distinctive qualities and interests of a particular region or area, especially in terms of its culture, language, economy or politics.

Origin:

Derived from the noun 'region' meaning 'an area or geographical region', the word has been in use since the 19th century.

Examples:

1. Regionalism has played a significant role in shaping the political landscape of many countries, especially in federal systems.
2. Regionalism has been a source of both unity and conflict, as regions seek to assert their interests and influence within a larger national context.
3. Regionalism has often been driven by a sense of cultural or economic disparity between regions, leading to demands for greater autonomy or independence.
4. Regionalism has been a powerful force in shaping the development of regions and cities, promoting investment and economic growth.
5. Regionalism has been an important factor in shaping the identities of many regions, preserving their unique cultural and historical heritage.