Homonym: -1 (Negative)
The number -1 is an integer that represents a value one less than zero. It is often used in mathematics to indicate a negative quantity. For example, if you have zero apples and you take one away, you would have -1 apples, which means you owe someone an apple.
In the context of temperature, -1 degrees can represent a chilly day, especially in winter. It shows that the temperature is just below freezing, which can lead to icy conditions. Understanding -1 helps us grasp concepts in both math and everyday life, making it a useful number to know.