1. a brotherhood or association of men united for some purpose, especially a religious society
Usage: formal
2. a group of people sharing common interests or beliefs
Usage: formal

Examples

• The medieval confraternity met weekly to discuss religious matters.
• He joined a confraternity of scholars dedicated to preserving ancient texts.
• The local confraternity organized charitable events for the community.
• Members of the confraternity took vows of mutual support and prayer.
• The confraternity had existed for over three centuries.
• Artists formed a confraternity to promote their craft and share techniques.