This lecture introduces multidimensional arrays in C++, explaining how to declare and manipulate them. It covers the declaration of arrays with multiple dimensions, the concept of arrays of arrays, and the distinction between a vector and a matrix. The instructor provides examples of declaring and accessing elements in multidimensional arrays, emphasizing the dynamic nature of these structures. Additionally, the lecture includes code examples in C++11 to illustrate the initialization and traversal of multidimensional arrays. Overall, students will gain a solid understanding of working with multidimensional arrays in C++ and how to effectively utilize them in programming.