(n): a large indefinite location on the surface of the Earth
(n): a subject of study
(n): some situation or event that is thought about
(n): a part of an animal that has a special function or is supplied by a given artery or nerve
(n): any part of an organism such as an organ or extremity
(n): a particular environment or walk of life
(n): the totality of surrounding conditions
(n): a part of a structure having some specific characteristic or function
(n): a thing constructed; a complex entity constructed of many parts
(n): the extent of a 2-dimensional surface enclosed within a boundary
(n): the distance or area or volume over which something extends