Open English Wordnet
Nouns
(n)cloistera courtyard with covered walks (as in religious institutions) Verbs
(v)cloistersurround with a cloister, as of a garden (v)cloistersurround with a cloister“cloister the garden” (v)cloisterseclude from the world in or as if in a cloister“She cloistered herself in the office”