A church is a large body of people belonging to an established religious organisation. Churches normally have a formal structure, with a hierarchy of religious officials, and the term is also used for the building where their religious ceremonials are held. Churches tend to be well-integrated into the broader society and often have a significant influence on social norms and values. They typically have a long history and established doctrines and practices. In sociological terms, a church is often contrasted with other types of religious organisations, such as sects and cults, which tend to be smaller, less formally organised, and may have more unconventional beliefs or practices. Churches often play a role in providing social services, education, and community support to their members.