Definition of cloister noun from the Oxford Advanced Learner's Dictionary

cloister

noun

ˈklɔɪstə(r) cloister pronunciation American

ˈklɔɪstər

1 [countable, usually plural] a covered passage with arches around a square garden, usually forming part of a cathedral, convent or monastery2 [singular] life in a convent or monasterythe calm of the cloister