D defs.my
Entry 2 senses · 2 variants Webster, 1913

Fortress

/fôr'-trəs/ · For·tress · IPA /ˈfoɹ.tɹɪs/
01 n. A fortified place; a large and permanent fortification, sometimes including a town; a fort; a castle; a stronghold; a place of defense or s…
pl. Fortresses ((#))
  1. 1.
    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.
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.
02 v. t. To furnish with a fortress or with fortresses; to guard; to fortify.
  1. 1.
    To furnish with a fortress or with fortresses; to guard; to fortify.