Karate-dō is a martial art that developed from a synthesis of indigenous Ryukyuan fighting methods, Chinese kempo and concepts from classical Japanese martial arts.  "Karate" originally meant Chinese hand, but was later changed to a homonym meaning "empty hand" in Japanese. It is known primarily as a striking art, featuring punching, kicking, knee/elbow strikes and open handed techniques. However, grappling, joint manipulations, locks, restraints/traps, throws and vital point striking also appear in karate.