Grandmaster (martial arts) of "Dan" rankings and Black belt and Red belt in martial arts both derive from Judo where they were adopted by its founder Kanō Jigorō. There are many terms similar or equivalent to 'grandmaster' used by various martial arts traditions. Some of these terms derive from older systems, while others are relatively modern. Japanese martial arts commonly use Sensei (先生) meaning "teacher" or literally translated, "born first" or "one who has gone before". A "Sensei" is a person who has knowledge and is willing to teach that knowledge to another. A "Sensei" assists students in "ken shiki" "the pursuit of
Blocking (martial arts) Blocking (martial arts) In martial arts, blocking is the act of stopping or deflecting an opponent's attack for the purpose of preventing injurious contact with the body. A block usually consists of placing a limb across the line of the attack. Styles and types of blocking, as well as terminology, vary widely among the various martial arts. In Japanese martial arts such as Karate, these techniques are referred to as "uke waza". Examples include "age uke" (rising block) and "shuto uke" (knife hand guarding block). In Korean martial arts such as Taekwondo, these techniques are referred to as "makgi"(막기), with