A Discord server is a dedicated space within the Discord platform where users can communicate and share content. Each server can be customized with different channels for text and voice, allowing members to discuss various topics or engage in activities like gaming. Servers can be public or private, and users can join based on their interests. Servers often have roles and permissions that help manage the community. Administrators can set rules, moderate discussions, and create specific channels for different subjects. This structure helps maintain organization and ensures that conversations remain relevant to the server's theme or purpose.