verb,determine the total number of (a collection of items). Counting is the process of determining the number of elements of a finite set of objects. In math, to count can be defined as the act of determining the quantity or the total number of objects in a set or a group. 7 days ago · count noun (NUMBER). Count (feminine: countess) is a historical title of nobility in certain European countries, varying in relative status, generally of middling rank in the hierarchy of.