Can also known as "The One". A common cliche in sci-fi and fantasy. This individual, the "Chosen One" is the sole person chosen by destiny to stop an impending disaster that threatens all life, save the world from a super villian, stop corruption, etc.
Basically, the only person who can save the day. Not their sidekick(s). Not mom. Not Dan. Only them.
Buffy. Frodo. Link. Aang. Neo. Master Chief. All of these people have been the Chosen One at one time or another. Cuz they all saved the day.
A beautiful soul. Chosen by the gods to be contained in a beautiful body with soft luscious lips and eyes which would melt sulfur dioxide. An Angel on Earth.
We don't know who the chosen one really is he's a mysterious figure he could be anyone he is a legend when will we get the chance to meet the all mighty chosen one?
The main character of Interplay / Black Isle's Post-Nuclear Role Playing Game, Fallout 2. He/She is the descendant of the Vault Dweller from the first Fallout, and is charged with a mission to save his/her dying village by searching for a G.E.C.K. (Garden Eden Creation Kit), which can restore the village, and pratically replace it with a grand town.
A movie/TV show/video game cliche in which a legend says that a character in has been chosen by destiny to preform a task that nobody else can perform. It is the epitome of ultimate power.