- last post: 01.01.0001 12:00 AM PDT
A thread is what you are posting in right now.
Forum - A board designed for a bunch of topics that are alike (Ex. Underground, Septagon...)
Thread - An individual topic made by a member. The threads (topics) are listed in the forum.
Post - A post (reply) is made inside the thread. For example, this is a post.
So, right now, this post is made in the "i need help with a forum" thread which was created in the Septagon forum.
Welcome to the forums!