The term "astronomical" refers to something that is extremely large or enormous, often used to describe quantities or sizes that are beyond ordinary comprehension. For example, the distance between stars in the Milky Way galaxy can be measured in light-years, which are vast distances that highlight the enormity of space. In everyday language, "astronomical" can also describe large numbers, such as financial figures or statistics. For instance, the cost of a major project might be described as astronomical if it reaches billions of dollars, emphasizing the significant scale of the investment involved.