Fortress Definition
A fortified place; a large and permanent fortification, sometimes including a town; a fort; a castle; a stronghold; a place of defense or security.
(chess) A position that, if obtained by the weaker side, will prevent penetration by the opposing side, generally achieving a draw.
Other Word Forms of Fortress
Noun
Origin of Fortress
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Middle English forteress from Old French from Medieval Latin fortalitia from Latin fortis strong bhergh-2 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
Old French forteresce, from Medieval Latin
From Wiktionary
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