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FORTRESS meaning, definition & pronunciation

What does fortress. mean? - Definition of fortress. - fortress. stands for A fortified place, especially a large, permanent fortification.. By

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The Subjectivity of the Line: Invisible Meanings of Early Modern European Fortress Plans｜Institute of History and Philology, Academia Sinica

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Fortress Meaning In Urdu, Garh گڑھ

What are some of the greatest fortresses ever built (they have been successful in repelling invaders and/or are impressive in terms of their size and ingenuity)? - Quora