Professional tennis, also known as the tennis pro scene, refers to the category of tennis players who have achieved the highest level of skill in the sport and earn a living by playing and competing in tournaments worldwide. Synonyms for professional tennis include the ATP (Association of Tennis Professionals) Tour, the WTA (Women's Tennis Association) Tour and the Grand Slam circuit. These are some of the biggest and most prestigious events that attract the world's top-ranked players, and offer lucrative prize money for the winners. Other terms that are used to describe professional tennis include elite tennis, competitive tennis, and high-level tennis, highlighting the skill and dedication required to achieve success in the sport at its highest level.