Higher dimensions refer to spaces that have more than the three familiar dimensions of length, width, and height. In mathematics and physics, these additional dimensions can be used to describe complex systems and phenomena. For example, a fourth dimension is often considered to be time, while theories like string theory propose up to ten or eleven dimensions, which help explain the fundamental forces of nature. In higher-dimensional spaces, objects can have properties that are difficult to visualize. For instance, a hypercube is a four-dimensional analogue of a cube, and it can be challenging to comprehend how it exists beyond our three-dimensional experience. Understanding higher dimensions can provide insights into various fields, including cosmology, quantum mechanics, and mathematics.