n.a room in a church where sacred vessels and vestments are kept or meetings are held
同义词：vestry
英汉双解大词典
sacristy/ˈsækrɪstɪ/(sacristies)
1.
N-COUNT（可数名词）
A sacristy is the room in a church where the priest or minister changes into their official clothes and where holy objects are kept. 圣器收藏室