a feature (as a pronunciation or expression or custom) that is characteristic of a particular region
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a foreign policy that defines the international interests of a country in terms of particular geographic areas
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loyalty to the interests of a particular region
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More important, it is worth envisioning what would happen if the Security Council did, for the sake of regionalism alone, "empower" a country like Brazil.
Global disciplines are needed, therefore, to make regional arrangements less damaging not merely to outsiders, but even to their participants. Will regionalism undermine globalism?
Call Thomas Hart Benton a failed artist as one critic does. Quibble over whether regionalism was a legitimate movement in American art history.