Sport is a word that describe any physical activity which involves activities which are performed in a competitive environment and has come to include any athletic activity. A typical sport will involve physical contact, where one participant attempts to hit another with a hard object, or where one participant is dangled from a balance apparatus or otherwise forced to the ground. The event may be competitive or non-competitive. Professional sport is generally associated with organised sports such as American football, ice hockey and Australian soccer. A common feature of most sports is that the participants are expected to wear protective clothing and equipment, and there is typically some form of rules or structure that governs how these sporting events are conducted.

In the United States, American football is the most popular sport for high school and college students. It is a fast-paced, often dramatic, physical activity in which players use their feet to make tackles, throw the ball, run and play defense. As football is one of the most popular contact sports, it is often practiced by separate teams, sometimes with little or no contact between teams, although games played on an individual basis are becoming more commonplace. Major league baseball and the National Basketball Association (NBA) also practice organized sports, though the latter’s rules regulating dress code prevent players from getting involved in too much physical activity when playing individual pick up games. International soccer and Australian rules horse racing, both of which also take part in organised sports, also allow for separate teams to compete.

Sport is a broad term and covers a wide range of physical activities. The word sport can also be used to refer to a set of activities, including games, work, or hobbies that require group participation and can be competitive or non-competitive. Sport can therefore be broadly divided into two main categories: physical activity and non-physical activity.