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[ree-surch] /riˈsɜrtʃ/
verb (used with object), verb (used without object)
to search or search for again.
Origin of re-search
1740-50; re- + search
Can be confused
re-search, research.


[ri-surch, ree-surch] /rɪˈsɜrtʃ, ˈri sɜrtʃ/
diligent and systematic inquiry or investigation into a subject in order to discover or revise facts, theories, applications, etc.:
recent research in medicine.
a particular instance or piece of research.
verb (used without object)
to make researches; investigate carefully.
verb (used with object)
to make an extensive investigation into:
to research a matter thoroughly.
1570-80; (v.) < Middle French recercher to seek, Old French, equivalent to re- re- + cercher to search; (noun) < Middle French recerche
Related forms
researchable, adjective
researcher, researchist, noun
proresearch, adjective
underresearch, verb (used with object)
Can be confused
re-search, research.
1. scrutiny, study. See investigation. 4. study, inquire, examine, scrutinize. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for research
  • Inequality research is one of those areas of social study that has only one acceptable answer.
  • So we've taken it upon ourselves to do a little research for you.
  • Doing their own research, starting from seed, finding organic solutions to pests.
  • In fact, this idea has been completely dispersed by modern research.
  • The history does not appear to be the fruit of much industry or research.
  • It was not the first time that conscience has turned against the methods of research.
  • It has escaped specialized attention in the laboratories and the research departments.
  • Why it is time to end invasive biomedical research on chimpanzees.
  • Current restrictions on marijuana research are absurd.
  • Delay will allow time for debate on regulating potentially dangerous research.
British Dictionary definitions for research


/rɪˈsɜːtʃ; ˈriːsɜːtʃ/
systematic investigation to establish facts or principles or to collect information on a subject
to carry out investigations into (a subject, problem, etc)
Derived Forms
researchable, adjective
researcher, 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
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Word Origin and History for research

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.


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.



"to search again," 1760, from re- + search (v.). Related: Re-searched; re-searching.

Online Etymology Dictionary, © 2010 Douglas Harper
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