An array is a set of uniform data elements, represented by a single variable name. The individual elements are accessed using the variable name together with one or more indexes between square brackets, as shown here:
Let's start with some important definitions having to do with arrays in C#.
Elements: The individual data items of an array are called elements. All elements of an array must be of the same type, or derived from the same type.
Rank/dimensions: Arrays can have any positive number of dimensions. The number of dimensions an array has is called its rank.
Dimension length: Each dimension of an array has a ...