Measurement across refers to the distance measured from one end or edge to the other end or edge of an object or space. Synonyms for measurement across include width, breadth, span, diameter, and distance. Width and breadth refer to the distance from side to side, while span refers to the distance between two points or sides. Diameter is the distance across the widest point of a circular object. Distance is a general term that can refer to any measurement across, regardless of the shape or size of the object. Regardless of which term is used, measurement across is an essential aspect of accurate and precise measurement techniques.