The term "-2 (Negative)" refers to a number that is two units less than zero. In mathematics, negative numbers are used to represent values below zero, such as temperatures in winter or debts. For example, if the temperature is -2 degrees, it means it is two degrees colder than freezing point. Negative numbers like -2 are essential in various fields, including finance and science. In finance, a negative balance indicates that someone owes money, while in science, negative values can represent loss or decrease in measurements. Understanding negative numbers helps us interpret real-world situations more accurately.