The term "astronomical" refers to something that is extremely large or enormous, often used to describe quantities or sizes that are beyond ordinary comprehension. It originates from the field of astronomy, where distances in space, such as the distance between stars or galaxies, are measured in vast units like light-years. In everyday language, "astronomical" can describe anything that is exceptionally high or large, such as astronomical costs or astronomical numbers. For example, the budget for a major project might be described as astronomical if it far exceeds typical expenses, highlighting its significant scale.