1) Zen Buddhist terminology 
Unsui (雲水), or kōun ryūsui (行雲流水) in full, is a term specific to Zen Buddhism which denotes a postulant awaiting acceptance into a monastery or a novice monk who has undertaken Zen training. Sometimes they will travel from monastery to monastery (angya) on a pilgrimage to find the appropriate Zen master to study with. ==Etymology== T...
'cloud water' : a novice