The word has a variety of uses, not all of them religious. It is widely used in Britain to describe Nonconformist* places of worship, while in Ireland it is often used to refer to Roman Catholic churches. In Europe, since the, a chapel has described the place of worship (which is not a parish church) belonging to a school, college, hospital, palace, etc.; that part of a cathedral or parish church where there is a separate altar/Communion table (often a “Lady Chapel”); and the chancel (hence also sometimes the choir) of a church or cathedral. Specialized usage of the word includes “Chapel Royal” (a church under the direct control of the sovereign), “Chapel of Ease” (a building subordinate to a parish church erected for the ease of parishioners), and “Proprietary Chapel” (primarily an eighteenth or nineteenth century phenomenon, built by subscription and maintained by private individuals but without parochial rights).
International Standard Bible Encyclopedia (1915)
(miqdash, "a holy place"; the