subreddit

A subreddit is a community on Reddit centered on a particular topic, interest, or theme. Each subreddit is identified by the r/ prefix (for example, r/science) and serves as a focused space where users can submit content, comment, and discuss within a defined set of rules. Subreddits can be public, private, or restricted, and they organize discussions separate from the site's main feed.

Subreddits have their own moderation teams called moderators who enforce community rules and curate posts. They can approve or remove submissions, set a posting format, apply flairs, and adjust visibility settings. Members participate by submitting links, text posts, images, or videos and by voting on posts and comments. Upvotes and downvotes influence ranking within the subreddit, shaping what content users see. While each subreddit has its own rules, all activity remains subject to Reddit's site-wide policies.

Subreddits are created by users and managed by volunteer moderators. Reddit oversees overall policy enforcement and can intervene in cases of policy violations. Some subreddits are open to all, while others are private or require approval to join. Controversies and moderation practices vary across communities, reflecting differences in culture and governance.

Popular subreddits include r/AskReddit and r/science, illustrating the range of topics and community sizes.