Dan (rank) highest level that might be attained, with instructor certification and judge/judgment authorization being understood as higher-level or more sophisticated. Many arts use between one and ten dan ranks: In some martial arts, black belts are worn for all "dan" grades. In others, the highest grade (10th "dan") wears a red colored belt. In Jūdo and Shotokan 6th to 8th "dan" may wear a red and white-patterned belt and 9th to 10th "dan" may wear a solid red belt. There is some variation even within styles. Generally, belts do not have markings that indicate the actual "dan" grade. Okinawan styles used
Judo particularly from more powerful throws that uke lacks the skill to breakfall from. For these reasons, throws are normally taught in order of difficulty for both tori and uke. This is exemplified in the "Gokyo" , a traditional grouping of throws arranged in order of difficulty of ukemi. Those grouped in are relatively simple to breakfall from whereas those grouped in are difficult to breakfall from. A practitioner of judo is known as a . The modern meaning of "judoka" in English is a judo practitioner of any level of expertise, but traditionally those below the rank of 4th "dan"