A (: ) or college was any association in ancient Rome that acted as a legal entity. Such associations could be civil or religious.
The word literally means "society", from ("colleague"). They functioned as social clubs or religious collectives whose members worked towards their shared interests. These shared interests encompassed a wide range of the various aspects of urban life; including political interests, cult practices, professions, trade, and civic services. The social connections fostered by ''collegia'' contributed to their influence on politics and the economy; acting as lobbying groups and representative groups for traders and merchants.