what is a region?

Answer 1

Region can be used to mean:

Any considerable and connected part of a space or surface; specifically, a tract of land or sea of considerable but indefinite extent; a country; a district; in a broad sense, a place without special reference to location or extent but viewed as an entity for geographical, social or cultural reasons.

The proper techniques of space delimitation covers regionalization.

the equatorial regions
the temperate regions
the polar regions
the upper regions of the atmosphere

An administrative subdivision of a city, a territory, a country or the European Union.

The geographically-specific encoding present on many commercially-produced DVDs.

(historical) Such a division of the city of Rome and of the territory about Rome, of which the number varied at different times; a district, quarter, or ward.

(figuratively) The inhabitants of a region or district of a country.

(anatomy) A place in or a part of the body in any way indicated.
the abdominal regions

Place; rank; station; dignity.

The space from the earth's surface out to the orbit of the moon: properly called the elemental region.

For the QuickDraw data structure,

Regions are conceptual constructs and, thus, may vary among cultures and individuals.

Answer 2

1 : an administrative area, division, or district; especially : the basic administrative unit for local government in Scotland
2 a : an indefinite area of the world or universe b : a broad geographic area distinguished by similar features c (1) : a major world area that supports a characteristic fauna (2) : an area characterized by the prevalence of one or more vegetational climax types
3 a : any of the major subdivisions into which the body or one of its parts is divisible b : an indefinite area surrounding a specified body part
4 : a sphere of activity or interest : FIELD
5 : any of the zones into which the atmosphere is divided according to height or the sea according to depth
6 : an open connected set together with none, some, or all of the points on its boundary

Answer 3

# the extended spatial location of something; "the farming regions of France"; "religions in all parts of the world"; "regions of outer space"

# area: a part of an animal that has a special function or is supplied by a given artery or nerve; "in the abdominal region"

# a large indefinite location on the surface of the Earth; "penguins inhabit the polar regions"

# the approximate amount of something (usually used prepositionally as in `in the region of'); "it was going to take in the region of two or three months to finish the job"; "the price is in the neighborhood of $100"

#domain: a knowledge domain that you are interested in or are communicating about; "it was a limited domain of discourse"; "here we enter the region of opinion"; "the realm of the occult"