What is Sanctuary ?
Sanctuary is (noun) 1. a place of safety The church became a sanctuary for illegal immigrants. People escaping from the revolutionary troops sought sanctu- ary in the church. 2. a place for the protec- tion of wild animals or birds They established several bird sanctuaries near the sea. 3. a holy place the ruins of the sanctu- ary of the goddess Athene 4. a part of a church where the high altar is placed The priest turned towards the altar and stepped into the sanctuary. (NOTE: The plural is sanctuaries.)
source: Easier English, Student Dictionary Upper Intermediate Level