4D Geometry refers to the study of shapes and spaces that exist in four dimensions, extending beyond the familiar three dimensions of length, width, and height. In this context, the fourth dimension is often considered time or an additional spatial dimension, allowing for more complex structures and relationships. Visualizing 4D shapes can be challenging, as humans perceive only three dimensions. However, mathematicians use projections and analogies to represent 4D objects, such as tesseracts, which are the four-dimensional counterparts of cubes. Understanding 4D Geometry has applications in various fields, including physics, computer science, and art.