An "out-group" refers to a social group that an individual does not identify with or belong to. This concept is often used in sociology and psychology to describe how people categorize themselves and others. Members of an out-group may be perceived as different or separate from one's own group, known as the "in-group." Out-groups can influence social dynamics, leading to feelings of competition or prejudice. For example, in-group favoritism may result in positive attitudes toward one's own group while fostering negative stereotypes about the out-group. Understanding these dynamics is essential for promoting social cohesion and reducing conflict among groups.