A gabion is a wire mesh basket filled with rocks, concrete, or soil, forming a strong, permeable structure used for erosion control, retaining walls, landscaping, and decorative features like privacy screens or raised beds, offering a versatile, durable, and stylish solution for garden and construction projects. The term "Gabiona" refers to a specific brand known for high-quality, robust, galvanised wire baskets designed for easy DIY assembly with natural stone fillings, creating modern, customizable garden elements.