Blockhouse
WordNet

noun


(1)   A stronghold that is reinforced for protection from enemy fire; with apertures for defensive fire
WiktionaryText

Noun


  1. A sturdy military fortification, often of concrete, with gunports.
  2. A reinforced building from which to control hazardous operations, such as an explosion or a rocket launch.
  3. A temporary wooden fortification with a projecting upper story.
 
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