Gravitational theory is a fundamental concept in physics that explains the behavior of objects in the presence of gravitational forces. There are various synonyms for gravitational theory that are commonly used in different contexts. Some of these synonyms include gravitational laws, gravitation principles, theories of gravity, Newton's theory of gravitation, and Einstein's theory of general relativity. These terms are used interchangeably to describe the same fundamental concept of gravity. While Newton's theory of gravitation is a classical theory, Einstein's theory of general relativity is a modern theory that explains gravity as the curvature of spacetime. Regardless of the terminology, gravitational theory remains a key concept in understanding the universe and its workings.