"3D" stands for "three-dimensional," which refers to objects that have depth, width, and height. Unlike 2D images, which only have height and width, 3D representations provide a more realistic view of objects, making them appear lifelike. This technology is commonly used in various fields, including animation, video games, and virtual reality. In 3D modeling, artists create digital representations of objects using software. These models can be manipulated and viewed from different angles, enhancing the viewer's experience. 3D printing is another application, allowing physical objects to be created from digital designs, revolutionizing industries like manufacturing and medicine.