sub
n. countablen. a smaller group or community on a website like Reddit. You use this to talk about a specific place where people discuss one topic.
n. a specific online community or forum dedicated to a particular topic, typically within a larger social media platform. A shortened form of 'subreddit' or 'sub-forum'; informal in register.
I joined a new sub to learn about gardening.
The moderators of the sub decided to ban political discussions to keep the community focused on photography.
While the main site attracts millions of visitors, the niche sub provides a more intimate space for experts to exchange technical advice without the noise of general threads.
* Shortened form of any of various words beginning with sub-.
From Latin sub.
Commonly used as a clipping of 'subreddit' in digital contexts; also functions as a clipping for 'submarine' or 'substitute' depending on the domain.