Cardinal numbers, also known as counting numbers, are the basic numbers used for counting objects in mathematics. Some common synonyms for cardinal numbers include whole numbers, natural numbers, and numeral numbers. Whole numbers refer to positive integers, including zero, whereas natural numbers pertain to positive integers alone. Numeral numbers represent numerical symbols that represent values, which may include non-whole numbers such as decimals or fractions. Other synonyms for cardinal numbers include positive integers, positive whole numbers, and counting numbers. These synonyms all emphasize the fundamental role of cardinal numbers in counting objects, and are used interchangeably throughout different mathematical contexts and discussions.