island fortress
Water-surrounded defensive structure
An island fortress is a fortified stronghold built on an island, using the surrounding water as a natural defensive barrier.
Historical examples include Alcatraz and Mont Saint-Michel.
The term extends figuratively to any isolated, heavily defended position: Britain served as an island fortress against Nazi expansion.
The company's island fortress strategy kept competitors at bay.
- citadelFortified urban stronghold
- strongholdFortified place of defense
- castleFortified medieval residence
- bastionFortified defensive position
- keepRetain or fortified tower
ramparts · sea · crashing waves · waves · cliffs · moat · drawbridge · watchtower · garrison · cannon fire · siege · last stand · battlements · secret passage · rocky · rocky shore · isolated · impregnable
- secret lairslair, hideout, underground base, hidden chamber, dungeon
- James Bond007, James Bond, Ian Fleming, MI6, Q
- swashbucklersswashbuckler, swashbucklers, swashbuckling, pirate, pirates
- TaiwanTaiwan, Taipei, Taichung, Formosa, Republic of China
- Ottoman Crete
island fortressdesert fortress
island fortresspublic square
Open urban gathering place
town commons · trading hub · village green · welcome center · trading post
island, fortress, islands, islander, islanders, isle, isles, islet, islets