The sacristy is the room where the priest prepares for the celebration of Mass.
In each Catholic church, there exists a room where the priest will prepare for the celebration of Mass.
This room is called a sacristy, which comes from the medieval Latin word sacristia, from the same root as "sacred."
The Catholic Encyclopedia summarizes what is contained in this room.
If you ever hear a Catholic talking about the "sacristy," now you know what it is!
Read more:What is a tabernacle?
