This section will explain to you just what Tenkaichi Budoukai is. The explanation of its meanings and its purpose.
Explanation/Meaning
Tenkaichi Budoukai is completely written in Kanji language. Each are seperated into each individual meaning:
Ten - Sky, Heaven
Ka - Underneath
ichi - Best or Number One
Bu - Technique
Dou - Way Of
Kai - Meeting/fighting
"Tenka" is used to refer to "the world," as everything in this world is beneath the skies / under heaven.
"Budou" means martial arts, or "the way (art) of fighting."
Putting the rest together, a fairly concise translation of "Tenkaichi Budoukai" would be "The World Under the Heavens Martial Artist Tournament."