research

1 of 2

noun

re·​search ri-ˈsərch  ˈrē-ˌsərch 

1

: studious inquiry or examination

especially : investigation or experimentation aimed at the discovery and interpretation of facts, revision of accepted theories or laws in the light of new facts, or practical application of such new or revised theories or laws

2

: the collecting of information about a particular subject

3

: careful or diligent search

research

2 of 2

verb

researched; researching; researches

transitive verb

1

: to search or investigate exhaustively

research a problem

2

: to do research for

research a book

intransitive verb

: to engage in research

researchable

ri-ˈsər-chə-bəl 

ˈrē-ˌsər-

adjective

researcher noun

Synonyms

Noun

• investigation
• inquiry
• study
• exploration
• examination

Verb

• explore
• investigate
• examine

Examples of research in a Sentence

Noun

She conducts research into the causes of Alzheimer's disease.

Recent research shows that the disease is caused in part by bad nutrition.

The study is an important piece of research.

He did a lot of research before buying his car.

Verb

He spent the summer researching his dissertation.

Before going out to eat, she researched area restaurants.

The reporter made hundreds of telephone calls while researching the story.

Recent Examples on the Web

Noun

Here, though, the research team is trying to model people’s thoughts on financial policy, which is why the enumerated outcomes include initial rate recommendations, made up of a preferred policy rate, a confidence score, and a summary. —John Werner, Forbes.com, 15 Sep. 2025

Many students rely on social media platforms to access online classes, research materials and collaborative learning tools. —Nir Kshetri, The Conversation, 14 Sep. 2025

Verb

Last Tuesday, Manatee Commissioner Amanda Ballard proposed that county staff research a similar ordinance to Sarasota County’s and return with more information, including a draft ordinance. —Miami Herald, 8 Sep. 2025

Due diligence also includes researching your industry, understanding timing and evaluating external risks (like tariffs or regulatory changes). —Hao Lam, Forbes.com, 8 Sep. 2025

Word History

Etymology

Noun

Middle French recerche, from recercher to go about seeking, from Old French recerchier, from re- + cerchier, sercher to search — more at search

First Known Use

Noun

1577, in the meaning defined at sense 3

Verb

1588, in the meaning defined at transitive sense 1

Phrases Containing research

• marketing research
• market research
• operations research
• oppo research
• research and development
• research park
• translational research

Rhymes for research

• recherche
• birch
• lurch
• perch
• search
• interchurch

Kids Definition

research

1 of 2 noun

re·​search ri-ˈsərch  ˈrē-ˌsərch 

1

: careful study and investigation for the purpose of discovering and explaining new knowledge

2

: the collecting of information about a subject

research

2 of 2 verb

1

: to search or investigate thoroughly

research her options

2

: to do research for

research a book

researcher noun