noun - a narrow piece of plastic, fabric, or elastic that people wear on their head to keep their hair back and away from the face
noun - a small decorative mat, usually made of lace or paper, placed under objects such as plates or vases to protect surfaces or for ornament
noun, technical - a large, rectangular building block made from a mixture of concrete and industrial cinders, typically hollow and used in construction for walls and foundations
noun - a flat covering, often made of fabric, plastic, or paper, placed on a table to protect its surface and enhance its appearance during meals