Free practice (usually judo but also used as a term in othe styles of karate for sparring)
Rei
"Respect" in Japanese culture is the bow
Reigi
Etiquette (also Reishiki)
Reishiki
Etiquette (also Reigi)
Rensei
Practice tournament. Competitors are critiqued by their performance.
Renshi
"Person who has mastered onself" concidered an expert instructor
Renzoku waza
Combination techniques
Ryu
School or style
Ryukyu
Okinawa