منتدى

Etymology
from the VIII-stem verb the root.

Noun

 * 1) place whither the people are called together, gathering place, meeting location, forum, assembly
 * 2) an internet forum, internet forums
 * 1) an internet forum, internet forums

Usage notes
For sense 2, the singular and plural are interchangeable when referring to a site that hosts forums, but isn't when referring to a single section in a website.