The dimension of an array is the number of indices that you need to
use to specify a cell. A one-dimensional array only requires one
number, where as an n-dimensional array requires n indices.
The process of taking a some structure, such as a game board,
and using some other form to represent it, such as an array.
A two-dimensional array is an array where each cell is specified by two
indices, often thought of as a row and column.
Refers to arrays being more than one-dimensional.