Black belt (martial arts) of ability when using these tactics and are sometimes referred to as McDojos or belt factories. In some Japanese schools, after obtaining a black belt the student also begins to instruct, and may be referred to as a senpai (senior student) or sensei (teacher). In others, a black belt student should not be called sensei until they are sandan (third degree black belt), or the titles kyosa or sabom in Korean martial arts as second degree or higher, as this denotes a greater degree of experience and a sensei must have this and grasp of what is involved in teaching
Grandmaster (martial arts) knowledge". Some organizations, such as the Bujinkan, Kodokan (Judo), and Shodokan Aikido, use the term shihan for high-ranking or highly distinguished instructors. , meaning "the head family [house]," is sometimes used to refer to "founder of a style" because many modern sōke are the first generation headmasters of their art, but most correctly refers to the current head. A sōke is considered the ultimate authority within their art and has the authority to issue a "menkyo kaiden" certificate indicating that someone has mastered all aspects of the style. The actual Korean word for a student's master is sonsaeng. This term