Dictionary.com
Thesaurus.com
Synonyms

research

American  
[ri-surch, ree-surch] / rɪˈsɜrtʃ, ˈri sɜrtʃ /

noun

  1. diligent and systematic inquiry or investigation into a subject in order to discover or revise facts, theories, applications, etc..

    recent research in medicine.

    Synonyms:
    study, scrutiny
  2. a particular instance or piece of research.


verb (used without object)

researches, present (3rd person singular) researched, past participle, past researching present participle
  1. to make researches; investigate carefully.

verb (used with object)

researches, present (3rd person singular) researched, past participle, past researching present participle
  1. to make an extensive investigation into.

    to research a matter thoroughly.

    Synonyms:
    scrutinize, examine, inquire, study
research British  
/ ˈriːsɜːtʃ, rɪˈsɜːtʃ /

noun

  1. systematic investigation to establish facts or principles or to collect information on a subject

"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

verb

  1. to carry out investigations into (a subject, problem, etc)

"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

Synonym Usage

See investigation.

Other Word Forms

Derived Forms

Etymology

Origin of research

First recorded in 1570–80; (verb) from Middle French recercher “to seek,” Old French, equivalent to re- re- + cercher search; (noun) from Middle French recerche

Explanation

In their spare time, teenagers LOVE doing extra research, by investigating the facts of a certain subject and studying and recording what they learn. And if you believe that, you need to do more research on the habits of teenagers. Research comes from the Old French word recercher, meaning "seek out," or "search closely." When you do research, you are searching for knowledge and facts. Although you write plenty of research papers in college, on anything from the Industrial Revolution to the meaning behind a fur-lined teacup, the term is often used when talking about science, because scientists use step-by-step research to prove what is true, or not true, in their line of work.

Keep Reading on Vocabulary.com

Vocabulary lists containing research

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"Is the iPhone Birth Control?" asked a paper published Monday by the National Bureau of Economic Research, delving into why US fertility rates have fallen by 22 percent since 2007.

From Barron's • Jun. 8, 2026

Probably not, according to Tobin Marcus, head of policy and politics at Wolfe Research.

From MarketWatch • Jun. 8, 2026

“June 5 delivered the sharpest single-day selloff in months across U.S. risk assets, as a blowout May jobs report boosted odds of Fed rate hikes,” UOB Global Economics & Markets Research says in a note.

From The Wall Street Journal • Jun. 8, 2026

The Pew Research Center estimates that in 2023, before President Trump's crackdown on undocumented migrants, there were 14 million immigrants living illegally in the US.

From BBC • Jun. 7, 2026

Music Research, a California-based firm, sent Kenna’s CD to twelve hundred people preselected by age, gender, and ethnicity.

From "Blink" by Malcolm Gladwell

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "research" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com