region meaning
EN
[ˈɹiːdʒn̩] [-iːdʒən] 
US WRegion
- In geography, regions are areas broadly divided by physical characteristics (physical geography), human-impact characteristics (human geography), and the interaction of humanity and the environment (environmental geography).
- Apart from the global continental regions, there are also hydrospheric and atmospheric regions that cover the oceans, and discrete climates above the land and water masses of the planet.
- As a way of describing spatial areas, the concept of regions is important and widely used among the many branches of geography, each of which can describe areas in regional terms.
FR région 
- NounPLregionsPREré-SUF-ion
- 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 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.
- (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
- OBS Place; rank; station; dignity.
- OBS The space from the earth's surface out to the orbit of the moon: properly called the elemental region.
- 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.
- More Examples
- Used in the Middle of Sentence
- Relative decreases were seen primarily in orbital and frontal regions, most notably in the pregenual region of the anterior cingulate cortex (pgACC) ( Fig 1 , Table 1 ).
- lights in the heavens transcending the region of the clouds
- Black arrows indicate suspicious regions due to heterogeneity in acetowhitening and/or vascular abnormality.
- Used in the Ending of Sentence
- After RSE treatment for 90 days, there was no comparable fibrosis in noninfarct and infarct regions.
- This slumped sitting posture may cause strain, instability, or injury in the lumbopelvic region.
- On examination a solitary nodule, which used to bleed on slightest trauma, was seen over an area of atrophic looking dyspigmented 8 × 10 cm plaque, situated in the interscapular region.
- Used in the Middle of Sentence
Definition of region in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Nouns
- en regions
- en regional
- en regionalism
- en regionals
- en regionist
Source: Wiktionary
Grammatically, this word "region" is a noun, more specifically, a countable noun.