The word "encore" refers to a repeated or additional performance, usually requested by an audience at the end of a concert, play, or other artistic presentation. It is a way for the audience to express their enjoyment and appreciation, prompting the performers to come back and do another piece.
The term "encore" comes from the French word "encore," which means "again" or "still." It was adopted into English to describe the practice of requesting that performers return to the stage for more.