Read the dictionary definition of cloister. All definitions for this word.
1. a courtyard with covered walks (as in religious institutions)
2. residence that is a place of religious seclusion (such as a monastery)
3. seclude from the world in or as if in a cloister
1. She cloistered herself in the office
4. surround with a cloister
1. cloister the garden
5. surround with a cloister, as of a garden