\ ˈrȯi(-ə)l , sense vt 2 is also ˈrī(-ə)l \
roiled; roiling; roils

Definition of roil 

transitive verb

1a : to make turbid by stirring up the sediment or dregs of

b : to stir up : disturb, disorder

intransitive verb

: to move turbulently : be in a state of turbulence or agitation conflicting emotions roiling inside her

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Examples of roil in a Sentence

Financial markets have been roiled by the banking crisis. the waters of the gulf tossed and roiled as the hurricane surged toward the shore

Recent Examples on the Web

Cooling confidence for some Jackson says the cooling of confidence in June is likely related to intensifying U.S. trade standoffs that have roiled stocks. Paul Davidson, USA TODAY, "Bullish Republicans are spending more than Democrats under Trump," 3 July 2018 The Dow Jones plunged 472 points Tuesday as the Italian political crisis that roiled global markets overnight stretched to Wall Street. Ben Popken /, NBC News, "Italy's political chaos just made the Dow Jones plunge 472 points," 29 May 2018 As to other leaks that roil the Trump team, a more traditional category stands out: the animus leak. Peter Grier, The Christian Science Monitor, "To understand Trump-team leaks, look at the leakers’ motives," 2 May 2018 The head of China's largest natural gas importer believes the country's energy ties with the U.S. are set to deepen, despite trade conflict between the world's two largest economies that has roiled financial markets. Bloomberg News, Houston Chronicle, "China' largest gas importer sees improved ties with U.S. producers," 10 Apr. 2018 The situation echoes similar quandaries that have roiled social media sites in recent years. David Z. Morris, Fortune, "Amazon Sold Books, Backpacks, and Toys Promoting Hate to Kids, Report Shows," 7 July 2018 Kraninger would inherit an agency that’s been roiled by a shift to Republican leadership under Mulvaney from its roots as a scourge of financial firms under Obama administration appointee Richard Cordray, a Democrat now running for governor of Ohio. Elizabeth Dexheimer And Margaret Talev,, "Little-known White House aide chosen to lead consumer agency," 16 June 2018 The announcement came at the tensest time in decades for the three North American countries, whose once-warm relations have been roiled during the first 18 months of Donald Trump’s presidency. Kevin Sieff, Washington Post, "Mexicans and Canadians cheer winning World Cup bid despite tensions with U.S.," 13 June 2018 Still, the council has been roiled by the disclosure and has opened an investigation. Kevin Litten,, "Entergy New Orleans actor controversy leads to new public comment rules," 4 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'roil.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of roil

1590, in the meaning defined at transitive sense 1a

History and Etymology for roil

origin unknown

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Dictionary Entries near roil



roi fainéant





Statistics for roil

Last Updated

7 Sep 2018

Look-up Popularity

Time Traveler for roil

The first known use of roil was in 1590

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More Definitions for roil



English Language Learners Definition of roil

: to upset (someone or something) very much : to cause (someone or something) to become very agitated or disturbed

: to move in a violent and confused way

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Comments on roil

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to make amends

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