| keep(noun, defense, refuge, fortification, cell) |
| mail |
| military post |
| office |
| order |
| redoubt(noun, refuge, fortification, cell, stronghold) |
| support(noun, defense, fortification, cell, stronghold) |
| tower(noun, fortification, cell, stronghold, sustainment) |
| acropolis(noun, fortification, cell, stronghold, sustainment) |
| alcazar(noun, fortification, cell, stronghold, sustainment) |
| alimony(noun, fortification, cell, stronghold, sustainment) |
| antechamber(noun, fortification, cell, stronghold, sustainment) |
| barbican(noun, fortification, cell, stronghold, sustainment) |
| bastille(noun, fortification, cell, stronghold, sustainment) |
| board(noun, fortification, cell, stronghold, sustainment) |
| bread and butter(noun, expression, idiom, fortification, cell) |
| bullpen(noun, fortification, cell, stronghold, sustainment) |
| cell(noun, fortification, stronghold, sustainment) |
| château(fortification, cell, stronghold, sustainment) |
| cloud buster(noun, expression, fortification, cell, stronghold) |