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region

American  
[ree-juhn] / ˈri dʒən /

noun

  1. an extensive, continuous part of a surface, space, or body.

    a region of the earth.
    Synonyms:
    portion, section, area

  2. Usually regions. the vast or indefinite entirety of a space or area, or something compared to one.

    the regions of the firmament; the regions of the mind.

  3. a part of the earth's surface (land or sea) of considerable and usually indefinite extent.

    a tropical region.

  4. a district without respect to boundaries or extent.

    a charming region in Connecticut.
    Synonyms:
    quarter, tract, site, locale

  5. a part or division of the universe, as the heavens.

    a galactic region.

  6. a large indefinite area or range of something specified; sphere.

    a region of authority.

  7. an area of interest, activity, pursuit, etc.; field.

    studies in the region of logic.

  8. an administrative division of a city or territory.

  9. Zoogeography. a major faunal area of the earth's surface, sometimes one regarded as a division of a larger area.

  10. Anatomy. a place in or a division of the body or a part of the body.

    the abdominal region.

  11. Mathematics.

    1. Also called domain.  an open connected set.

    2. the union of such a set and some or all of its boundary points.

region British  
/ ˈriːdʒən /

noun

  1. any large, indefinite, and continuous part of a surface or space

  2. an area considered as a unit for geographical, functional, social, or cultural reasons

  3. an administrative division of a country

    Tuscany is one of the regions of the Italian Republic

  4. a realm or sphere of activity or interest

  5. range, area, or scope

    in what region is the price likely to be?

  6. a division or part of the boday

    the lumbar region

  7. (in Scotland from 1975 until 1996) any of the nine territorial divisions into which the mainland of Scotland was divided for purposes of local government; replaced in 1996 by council areas See also islands council

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
region Idioms  

  1. see in the neighborhood (region) of.

Other Word Forms

  • underregion noun

Etymology

Origin of region

First recorded in 1300–50; Middle English, from Anglo-French regiun, from Latin regiōn-, stem of regiō “direction, line, boundary,” from reg(ere) “to make straight, guide, rule” + -iō -ion

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.