The term 'orderly grouping' can be described as an ARRAY, which is a five-letter word. An ARRAY is a type of data structure that organizes items in a specific order. It is commonly used to store and manipulate data in programming languages. Arrays are also used to represent mathematical objects such as vectors and matrices. They are often used to store collections of related data, such as a list of names or a set of numbers. Arrays can be used to store any type of data, including strings, integers, and objects.