railing

noun railing

• backstop — a screen or fence to prevent balls leaving the playing area
• barrier — A barrier is something such as a rule, law, or policy that makes it difficult or impossible for something to happen or be achieved.
• blank wall — an impassable barricade or obstacle; a situation in which further progress is impossible: Attempts to get information by questioning the neighbors ran into a blank wall.
• bravado — Bravado is an appearance of courage or confidence that someone shows in order to impress other people.
• fence — a barrier enclosing or bordering a field, yard, etc., usually made of posts and wire or wood, used to prevent entrance, to confine, or to mark a boundary.