Definition of “sanctuary” - Learner’s Dictionary

sanctuary

noun uk us /ˈsæŋktʃʊəri/
QUIET [ C, U ]

a quiet and peaceful place:

After a busy day, I like to escape to the sanctuary of my garden.
PROTECTION [ C, U ]

a place that provides protection:

to seek sanctuary
ANIMALS [ C ]

a place where animals are protected and cannot be hunted:

a bird/wildlife sanctuary

(Definition of “sanctuary” from the Cambridge Learner's Dictionary © Cambridge University Press)