Explore thousands of active forums by topic on Forum Directory. Find communities that match your interests or submit your own forum to get listed today! The Forum format is derived from BBS and Usenet. [3] This is a list of the most notable and significant Internet forums communities that have converged around topics ranging from medicine to technology, and vocations and hobbies. The meaning of FORUM is the marketplace or public place of an ancient Roman city forming the center of judicial and public business. How to use forum in a sentence. New Premium Warbond out now! A subreddit dedicated to HELLDIVERS and HELLDIVERS 2, intense co-op shooters set in a satirical dystopian future where you play as one of mankind's elite soldiers determined to spread managed democracy. Developed by Arrowhead Game Studios. New Premium Warbond out now! Sign In. FORUM definition: 1. a situation or meeting in which people can talk about a problem or matter especially of public…. Learn more. Ham Radio Forum A place for ham radio enthusiasts to talk shop. Shortwave, ICOM, Kenwood, Baofeng, Eton, Grundig, Yaesu, B-tech A discussion forum is hierarchical or tree-like in structure; a forum can contain a number of sub-forums, each of which may have several topics. Depending on the forum's settings, users can be anonymous or have to register with the forum and then subsequently log in to post messages. Join the forum and come across discussions on World of Warcraft, talk about your favorite series, and get spoilers, tips, rumors, speculation, reviews, and a whole bunch more here. Define forum. forum synonyms, forum pronunciation, forum translation, English dictionary definition of forum. n. pl. fo·rums also fo·ra 1. a. The public square or marketplace of an ancient Roman city that was the assembly place for judicial activity and public.