Pillow structure (4)
I believe the answer is:
fort
(Other definitions for fort that I've seen before include "Defensive stronghold" , "Military building" , "US gold reserves are at - Knox" , "Citadel" , "Military post in the old West" .)
I believe the answer is:
fort
(Other definitions for fort that I've seen before include "Defensive stronghold" , "Military building" , "US gold reserves are at - Knox" , "Citadel" , "Military post in the old West" .)