4 definitions found

From WordNet (r) 2.0 [wn]:

fortress

noun: a fortified defensive structure [syn: {fort}]

From The Collaborative International Dictionary of English v.0.44 [gcide]:

Fortress \For"tress\, noun; pl. {Fortresses}. [F. forteresse, OF. forteresce, fortelesce, LL. foralitia, fr. L. fortis strong. See {Fort}, and cf. {Fortalice}.] A fortified place; a large and permanent fortification, sometimes including a town; a fort; a castle; a stronghold; a place of defense or security.

Syn: {Fortress}, {Fortification}, {Castle}, {Citadel}.

Usage: A fortress is constructed for military purposes only, and is permanently garrisoned; a fortification is built to defend harbors, cities, etc.; a castle is a fortress of early times which was ordinarily a palatial dwelling; a citadel is the stronghold of a fortress or city, etc.

From The Collaborative International Dictionary of English v.0.44 [gcide]:

Fortress \For"tress\, verb (used with an object) To furnish with a fortress or with fortresses; to guard; to fortify. --Shak.

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

32 Moby Thesaurus words for "fortress": acropolis, bastion, beachhead, blockhouse, bridgehead, bunker, castle, citadel, donjon, fasthold, fastness, fort, garrison, garrison house, hold, keep, martello, martello tower, mote, motte, peel, peel tower, pillbox, post, rath, redoubt, safehold, strong point, stronghold, tower, tower of strength, ward

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