Sacristy
/ˈsækrɪsti/
Definition 1 of 1
Pro Tip 1/3Church Specific
Use 'sacristy' when talking about spaces within a church, not other religions' buildings. 
The candles for the service are stored in the sacristy.
Pro Tip 2/3Sacred Items
'Sacristy' is used for rooms with religious importance, suggesting a sense of respect. 
They found the antique chalice in the sacristy.
Pro Tip 3/3Behind Scenes
The sacristy is usually off-limits to the general public, highlighting its private nature. 
Only church staff are allowed in the sacristy.