A "Counting Number" refers to the set of positive integers used for counting objects. These numbers start from 1 and continue indefinitely: 1, 2, 3, 4, 5, .... Counting numbers are fundamental in mathematics and are often the first numbers taught to children. Counting numbers are also known as natural numbers, although some definitions include 0 as a natural number. They are used in everyday situations, such as counting items, measuring quantities, and organizing data. Understanding counting numbers is essential for basic arithmetic and more advanced mathematical concepts.