RHD is the acronym for "Right Hand Drive," a term commonly used in the automotive industry to describe vehicles designed for use in countries where vehicles drive on the left-hand side of the road. Synonyms for RHD may include "right-hand steering," "right-side driving," or "left-side passenger," as the driver is positioned on the right-hand side of the vehicle while passengers sit on the left. Such vehicle designs are common in countries including the United Kingdom, Japan, and Australia. RHD may also refer to other industries, such as electronics, where it may indicate a right-hand display or orientation.