Unified field theory refers to the idea of unifying all fundamental forces of nature into a single theoretical framework. Synonyms for unified field theory may include a grand unified theory, the theory of everything, or a unified theory of physics. These different names essentially refer to the same concept of finding a single and elegant explanation that explains the workings of the universe. While it is still a theoretical framework that is being researched, there have been multiple attempts to develop this idea. Although progress has been made in understanding the universe, the idea of a unified field theory remains one of the most intriguing and difficult problems in theoretical physics.