1. Protective measure against potential harm
2. Strong defensive shield
2. Object that prevents passage or action
3. Protecting from danger or harm
4. Means of protection
5. Structure that serves as a barrier
6. Shield or protection
7. Stronghold or fortified position
7. Device that absorbs or reduces shock
8. Structure that provides protection
8. Protective casing or shield
9. Protective covering to absorb shock
10. Mask or shield for the face
11. Protective shield or partition
12. Underground shelter or defense
12. Obstacle that shields from harm
13. Condition of being protected from harm
14. Defending against danger or threat