. | 1. | Military. a fortified structure with ports or loopholes through which defenders may direct gunfire. |
| 2. | Also called garrison house. (formerly) a building, usually of hewn timber and with a projecting upper story, having loopholes for musketry. |
| 3. | a house built of squared logs. |
| 4. | Rocketry. a structure near a launching site for rockets, generally made of heavily reinforced concrete, for housing and protecting personnel, electronic controls, and auxiliary apparatus before and during launching operations. |