The eleventh element refers to the specific item located at index 10 (assuming zero-based indexing) within an array.
Index Out of Bounds: An error that occurs when trying to access an element outside the valid range of indices for a data structure.
Array Length: The total number of elements present in an array. It helps determine the maximum valid index for accessing elements.
The process of retrieving or modifying individual items within a data structure using their indices.