An array in Delphi is a data structure that stores a collection of elements of the same data type in a contiguous block of memory. It is a fixed-size collection, meaning the number of elements in the array is determined when it is initialized and cannot be changed dynamically at runtime. Arrays in Delphi are 0-based, which means the first element in the array is at index 0. Arrays can be single-dimensional, multi-dimensional, or dynamic, depending on the requirements of the application.
