Glossary of Judo terminology
Judo "Rei ni hajimari, rei ni owaru" (Beginning and ending with a bow of respect), and the proper "Reiho" (Etiquette) is the first lesson that newcomers receive.
Reiho is an expression of respect for the other person. The white color of a beginner's Belt reflects the beginner's pureness of heart in terms of respect for the opponent. The beginner learns this Reiho (Etiquette) in order to engage in friendly competition without arrogance.
In Judo, there is a "Ritsu-rei" (Standing bow) and a "Zarei" (Seated bow), and these are always performed at the beginning and end of Judo "Kata" (Form) practice, contests, and Randori (Free sparring).