Blockhouse (noun)

1. A small, sturdy building made of logs or other materials, used as a defensive fortification.
2. A building used for military purposes, such as observation, communication, or storage.
3. A small, isolated building or cabin used for shelter, especially in a wilderness area.

Origin:

Blockhouse is derived from the old french word 'blocus' meaning block or obstruction and 'house' meaning a building.

Examples:

1. During the American Revolution, blockhouses were built to provide protection against Indian attacks.
2. Blockhouses were used extensively in World War I and World War II, as they offered good protection against enemy fire.
3. Blockhouses were also used as signal stations, barracks, and storage depots during the frontier wars in Australia.
4. A blockhouse can also be a simple cabin or shelter in a remote area, providing a safe and secure place to stay.
5. Blockhouses are often built in rugged and challenging environments, and are designed to withstand extreme weather conditions.