12 | 12 | 2017

Kohai - (ko'hi) a junior assistant teacher that has limited duties. He or she can only hold class, and cannot teach new techniques. They are usually ikkyu or above.

Senpai - (sin'pie) a senior assistant teacher that has more expanded duties. He or she can hold class and also teach new techniques. They are usually shodan or above.

Sensei - (sin'say) a certified teacher that is usually in charge of a dojo or school. He or she can hold class, teach new techniques, and promote students. They are usually Sandan or Yondan, but may be as low as Shodan.

Shihan - (she'han) a "teacher's teacher" who is usually in charge over several sensei and can certify new instructors. Shihan generally ensure that all the sensei are giving quality instruction to their students.