Definition of "frontiers" []

• Plural form of frontier. (noun)

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• "What happens outside our frontiers is at least as important as what happens within them."
• "The idea of open and closed frontiers is Giliomee's, articulated in "Processes in Development of the Southern African Frontier," in Lamar and Thompson, 76 – 119."
• "Allying with Nanzhao, Tibetan cavalry challenged Tang China's long frontiers from the southwest to the northwest."