Final answer:
A 'cloister' is an area within a monastery or convent, characterized by a covered walkway surrounding an open courtyard, typically used for contemplation and reflection.
Step-by-step explanation:
The term 'cloister' refers to an area within a monastery or convent to which the religious community is normally restricted. It may also refer to an open area surrounded by a covered walkway. This architectural feature is closely associated with religious buildings and offers a place of quiet and seclusion for reflection and walking. The structures surrounding a cloister, such as an arcade, provide a pathway with a series of arches that may overlook a garden or courtyard. Cloisters are not to be confused with other architectural elements like parapets which are parts of a perimeter that extends above the roof, or pilasters which are rectangular columns for decoration or minor support.Catacombs, on the other hand, are underground cemeteries and should not be mistaken for cloisters.