water bottle (of a monk or nun); flask
Buddhist term for a water bottle or flask carried by monks and nuns, often used for drinking or ritual purification.
The monk put water in his flask and went out for alms.
Archaic use; in modern Japanese, 花瓶 (かびん) is the standard word for vase.
In old texts, 軍持 sometimes referred to a vessel for arranging flowers.