Touché is a French word that has been adopted into the English language. It is used to acknowledge a hit in fencing or to admit that someone has made a good point in an argument or discussion. The term is often used to express the success or appropriateness of an argument, an accusation, or a witty point. In simple terms, when someone says "touché" in response to a statement, they are acknowledging that the other person has made a clever or effective point, similar to conceding a point in a debate or argument. The word originates from the sport of fencing, where it is used to acknowledge a scoring hit.