A group is a collection of individuals who come together for a common purpose or interest. Groups can vary in size and structure, ranging from small teams to large organizations. They often share goals, values, or activities, which help to foster a sense of belonging among members. Examples of groups include sports teams, study groups, and community organizations. Groups can be formal or informal. Formal groups have defined roles and responsibilities, such as work teams or clubs, while informal groups may form naturally based on friendships or shared interests. The dynamics within a group can influence how effectively they work together and achieve their objectives.