Squall lines are commonly used to describe narrow bands of thunderstorms that move rapidly and can produce strong winds. However, there are several synonyms that can be used to describe these weather phenomena. Some of these synonyms include gust fronts, thunderstorm bands, storm cells, and Mesoscale Convective Systems (MCS). Gust fronts refer to the leading edge of a thunderstorm's outflow, while thunderstorm bands describe the formation of a line of multiple thunderstorms. Similarly, storm cells refer to individual thunderstorms within a larger system, while MCS describes a larger system of thunderstorms that can span hundreds of miles. No matter the terminology used, it's important to stay informed about approaching squall lines and take appropriate safety precautions.