A covered walk with an open colonnade on one side, running along the walls of buildings that face a quadrangle; especially:
A place, especially a monastery or convent, devoted to religious seclusion.
The monastic life.
To become a Roman Catholic religious.
To confine in a cloister, voluntarily or not.
To deliberately withdraw from worldly things.
To provide with a cloister or cloisters.
To protect or isolate.