Isobars are lines on a map connecting points of equal atmospheric pressure. There are several synonyms that can be used to describe isobars, including barometric contours, isobaric lines, and pressure isolines. These terms are often used interchangeably in weather forecasting and meteorology. Additionally, the terms isopleths and isopiestic lines are sometimes used to describe lines of equal pressure, although they may refer to other types of measurements beyond atmospheric pressure. Regardless of the specific terminology used, isobars and their synonyms play a critical role in understanding weather patterns and predicting changes in atmospheric conditions.