Translation guide
A physical barrier that shields or defends an area, person, or thing from harm, danger, or unwanted intrusion.
A wall built to protect a place or people from physical threats like attacks, floods, or wind.
General term for a protective wall, often used in engineering or military contexts.
Something that acts like a wall to protect against non-physical threats, such as emotional harm or criticism.
Literally 'wall of the heart', used for emotional barriers people put up.
Directly translating 'protective wall' as 保護壁 (ほごへき) is not common in Japanese. Use 防護壁 or 防壁 for physical barriers, and 心の壁 for emotional barriers.
The building is surrounded by a protective wall.
Commonly used for defensive walls, such as castle walls or sea walls.
A protective wall was built along the coast.
Specifically a retaining wall, used to hold back earth or water.
The retaining wall prevents landslides.
He builds a protective wall around his heart and doesn't let anyone get close.
Can be used metaphorically for a defensive barrier in arguments or social situations.
I put up a protective wall against his criticism.