座禅【ざぜん】
zazen (seated Zen meditation, usu. in a cross-legged position)
禅宗【ぜんしゅう】
Zen (Buddhism)
禅僧【ぜんそう】
Zen priest
禅問答【ぜんもんどう】
Zen dialogue, Zen questions and answers
禅寺【ぜんでら】
Zen temple
禅譲【ぜんじょう】
abdication (of a Chinese emperor) in favor of a virtuous successor (as opposed to an heir), smooth transference of power (responsibility, etc.)