rakuza 楽座 ( らくざ ) - seated posture with soles of the feet together

rappa 乱破 ( らっぱ ) - another term for ninja

reisho 隷書 ( れいしょ ) - clerical script; old, highly angular style of writing

rokushakubou 六尺棒 ( ろくしゃくぼう ) - six shaku staff; six foot staff

rounin 浪人 ( ろうにん ) - masterless samurai

ruikei no jutsu 縲繋之術 ( るいけいのじゅつ ) - methods of binding with a rope

ryuu 流 ( りゅう ) - style; school; method; tradition

ryuuha 流派 ( りゅうは ) - school; tradition