(a principle or regulation governing conduct, action, procedure, arrangement)
In this thread (sort of like a blog on a forum, except where a blog is more about the person who wrote it, a thread is more open to discussion on a topic.) the main point lies in finding out the real meaning behind specific words (visual symbols made up of letters that enable oral and written communication. Words constitute the building blocks of any language.)
The principle is very simple (as in not complicated.)
I write a word, and the next person has to explain it by writing or finding a respective definition (A series of words used to explain the meaning of another word; sometimes don't make sense)
Then that person writes a word of his/her choice (an act or instance of choosing) and the nest person will have to describe that word now.
The word that I want you to describe is...