The term "jet stream" refers to a narrow, high-altitude ribbon of fast-moving air that travels across the globe. It plays a crucial role in shaping weather patterns and can have a significant impact on aviation and shipping. There are several synonyms for this meteorological phenomenon, including "polar jet," "subtropical jet," and "upper-level wind maxima." The polar jet stream, which typically flows from west to east at speeds of up to 250 mph, is the most well-known and well-studied type. The subtropical jet, found at lower latitudes, also plays a crucial role in shaping weather and storm patterns. Overall, the study of jet streams is an important area of research in atmospheric science.