Definitions
1.nounA covered walk with an open colonnade on one side, running along the walls of buildings that face a quadrangle; especially:
2.nounA place, especially a monastery or convent, devoted to religious seclusion.
3.nounThe monastic life.
4.verbTo become a Roman Catholic religious.
5.verbTo confine in a cloister, voluntarily or not.
6.verbTo deliberately withdraw from worldly things.
7.verbTo provide with a cloister or cloisters."The architect cloistered the college just like the monastery which founded it."
8.verbTo protect or isolate.