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  1. affiliated in an organization, especially a union: organized dockworkers.
  2. having a formal organization or structure, especially to coordinate or carry out for widespread activities: organized medicine; organized crime.
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Origin of organized

First recorded in 1810–20; organize + -ed2
Related formswell-or·gan·ized, adjective


verb (used with object), or·gan·ized, or·gan·iz·ing.
  1. to form as or into a whole consisting of interdependent or coordinated parts, especially for united action: to organize a committee.
  2. to systematize: to organize the files of an office.
  3. to give organic structure or character to: Cells become differentiated and organized into tissues.
  4. to enlist or attempt to enlist into a labor union: to organize workers.
  5. to enlist the employees of (a company) into a labor union; unionize: to organize a factory.
  6. Informal. to put (oneself) in a state of mental competence to perform a task: We can't have any slip-ups, so you'd better get organized.
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verb (used without object), or·gan·ized, or·gan·iz·ing.
  1. to combine in an organized company, party, or the like.
  2. to form a labor union: Management resisted all efforts to organize.
  3. to assume organic structure.
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Also especially British, or·gan·ise.

Origin of organize

1375–1425; late Middle English < Medieval Latin organizāre to contrive, arrange, equivalent to organ(um) organ + -izāre -ize
Related formsor·gan·iz·a·ble, adjectiveor·gan·iz·a·bil·i·ty, nounmis·or·gan·ize, verb, mis·or·gan·ized, mis·or·gan·iz·ing.out·or·gan·ize, verb (used with object), out·or·gan·ized, out·or·gan·iz·ing.pre·or·gan·ize, verb, pre·or·gan·ized, pre·or·gan·iz·ing.un·or·gan·iz·a·ble, adjective


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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

standardized, formed, classified, catalogued, correlated, tabulated

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British Dictionary definitions for organized



  1. planned and controlled on a large scale and involving many peopleorganized crime
  2. orderly and efficienta highly organized campaign
  3. (of the workers in a factory or office) belonging to a trade unionorganized labour
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  1. to form (parts or elements of something) into a structured whole; coordinate
  2. (tr) to arrange methodically or in order
  3. (tr) to provide with an organic structure
  4. (tr) to enlist (the workers) of (a factory, concern, or industry) in a trade union
  5. (intr) to join or form an organization or trade union
  6. (tr) informal to put (oneself) in an alert and responsible frame of mind
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Word Origin

C15: from Medieval Latin organizare, from Latin organum organ
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

Word Origin and History for organized


1590s, "furnished with organs," past participle adjective from organize (v.). Meaning "forming a whole of interdependent parts" is from 1817. Organized crime attested from 1929.

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early 15c., "construct, establish," from Middle French organiser and directly from Medieval Latin organizare, from Latin organum "instrument, organ" (see organ). Related: Organized; organizing.

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Online Etymology Dictionary, © 2010 Douglas Harper

organized in Medicine


  1. To put together into an orderly, functional, structured whole.
  2. To arrange in a coherent form.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.