roil

verb

ˈrȯi(-ə)l How to pronounce roil (audio)
 transitive sense 2 is also  ˈrī(-ə)l
roiled; roiling; roils

transitive verb

1
a
: to make turbid by stirring up the sediment or dregs of
b
: to stir up : disturb, disorder
2

intransitive verb

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

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In May, Ayers posted photos on social media site X of lightning roiling far, far beneath the International Space Station. Eric Lagatta, USA Today, 8 July 2025 But the conflict that’s roiling your family complicates things. R. Eric Thomas, Mercury News, 7 July 2025 Hundreds of people were arrested by various law enforcement agencies as protests roiled downtown Los Angeles for more than a week, with the most intense period of unrest from June 6 until June 10, the day a regional curfew was imposed. Clara Harter, Los Angeles Times, 2 July 2025 While President Trump's announcement of sweeping tariffs in April roiled markets and led a number of companies to delay their plans, activity has been picking up of late. Jordan Novet, CNBC, 1 July 2025 See All Example Sentences for roil

Word History

Etymology

origin unknown

First Known Use

1590, in the meaning defined at transitive sense 1a

Time Traveler
The first known use of roil was in 1590

Browse Nearby Words

Cite this Entry

“Roil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/roil. Accessed 11 Jul. 2025.

Kids Definition

roil

verb
ˈrȯi(ə)l How to pronounce roil (audio)
 sense 2 is also  ˈrī(ə)l
1
: to make cloudy or muddy by stirring up
roil the water of a brook
2
: to rouse the anger of

More from Merriam-Webster on roil

Last Updated: - Updated example sentences
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