Multidimensional Arrays: Multidimensional arrays extend beyond two dimensions (rows and columns). For example, a three-dimensional array adds depth as another dimension along with rows and columns.
Jagged Arrays: Jagged arrays are arrays where each row may have different lengths. This allows for more flexibility when dealing with irregularly shaped data structures compared to regular rectangular 2-D arrays.
Array Indexing: Array indexing refers to accessing or modifying elements in an array using their position or indices. In the case of 2-D arrays, you need to specify both the row and column index to access a particular element.