a structure consisting of an area that has been enclosed for some purpose

a small recess opening off a larger room

a domed or vaulted recess or projection on a building especially the east end of a church; usually contains the altar

a niche for a funeral urn containing the ashes of the cremated dead

an open recess in a wall at the base of a chimney where a fire can be built

(Islam) a niche in the wall of a mosque that indicates the direction of Mecca