A pressure group is an organized group of individuals or organizations that aim to influence public policy and decision-making. A FACTION is a small group within a larger group that has a common purpose or goal, often in opposition to the larger group. Peers are members of a social group who have equal status and can interact as equals. A LOBBY is an organized group of people who attempt to influence public officials and policymakers. All of these terms are related to pressure groups, which are organized groups of individuals or organizations that seek to influence public policy and decision-making.