• synonyms


[ri-surch, ree-surch]
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  1. diligent and systematic inquiry or investigation into a subject in order to discover or revise facts, theories, applications, etc.: recent research in medicine.
  2. a particular instance or piece of research.
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verb (used without object)
  1. to make researches; investigate carefully.
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verb (used with object)
  1. to make an extensive investigation into: to research a matter thoroughly.
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Origin of research

1570–80; (v.) < Middle French recercher to seek, Old French, equivalent to re- re- + cercher to search; (noun) < Middle French recerche
Related formsre·search·a·ble, adjectivere·search·er, re·search·ist, nounpro·re·search, adjectiveun·der·re·search, verb (used with object)
Can be confusedre-search research


See more synonyms for on Thesaurus.com
1. scrutiny, study. See investigation. 4. study, inquire, examine, scrutinize.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

scientist, analyst, investigator, experimenter, clinician, analyzer, tester

Examples from the Web for researcher

Contemporary Examples

Historical Examples

  • The researcher may have to work for years before he achieves the results for which he is looking.

    Herein is Love

    Reuel L. Howe

  • The Researcher felt that a Theory must be constructed without delay.

    Sylvie and Bruno

    Lewis Carroll

  • It will be, declares one researcher, "the ultimate in communications."

    The Practical Values of Space Exploration

    Committee on Science and Astronautics

  • Leoh became a student once again, then a researcher, and finally a Professor of Psychophysiology.

    The Dueling Machine

    Benjamin William Bova

  • Years back an American researcher named Rhine obtained seemingly conclusive proof that telepathy took place.

    The Leader

    William Fitzgerald Jenkins (AKA Murray Leinster)

British Dictionary definitions for researcher


  1. systematic investigation to establish facts or principles or to collect information on a subject
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  1. to carry out investigations into (a subject, problem, etc)
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Derived Formsresearchable, adjectiveresearcher, noun

Word Origin

C16: from Old French recercher to seek, search again, from re- + cercher to search
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 researcher



1570s, "act of searching closely," from Middle French recerche (1530s, Modern French recherche), back-formation from Old French recercher (see research (v.)). Meaning "scientific inquiry" is first attested 1630s. Phrase research and development is recorded from 1923.

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1590s, from Middle French recercher, from Old French recercher "seek out, search closely," from re-, intensive prefix (see re-), + cercher "to seek for" (see search (v.)). Related: Researched; researching.

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Online Etymology Dictionary, © 2010 Douglas Harper