A tournament is a game thing that everyone vs 1 oppenint. then the people who win the game vs another person. they keep going til the last person remains. the 2nd last game is called the semifinal....
Invitational Tournament.
A Ladder
Well that all depends on what tournament you're talking about. ;)
They works as war games, honing in skill, proving honor, strengthening alliances, and testing the strength of rivals.