Sentence:  The <WSD>peristyle</WSD> is a roofed structure, open at the sides, in which most of the ceremonials and dances take place. 
Meaning of the word marked with <WSD> tags:  A sacred roofed courtyard with a central pillar (the potomitan), used as a space for voodoo ceremonies, either alone or as an adjunct to an enclosed temple or altar-room.