fortress

fortress

noun

Definition of FORTRESS

a structure or place from which one can resist attack <the boys built a snow fortress and then challenged the neighborhood kids to an in-your-face snowball fight>

Synonyms bastion, castle, citadel, fastness, fortification, fortress, hold, redoubt, stronghold

Related Words battlement, breastwork, bulwark, earthwork, embattlement, parapet, rampart; bunker, dugout; blockhouse, garrison house; alcazar, casbah (also kasbah)