run rampant
idiom
: to be very common or to spread very quickly and in a way that is difficult to control
Rumors of her engagement ran rampant.
Examples of run rampant in a Sentence
Recent Examples on the Web
In that vacuum, speculation has run rampant inside and outside city offices, with many believing hundreds of jobs are potentially at stake.
—
Elliott Wenzler, Denver Post, 18 Aug. 2025
The administration accused Harvard and other universities of allowing antisemitism to run rampant on campus amid pro-Palestinian demonstrations last year.
—Khaleda Rahman, MSNBC Newsweek, 30 July 2025
Speculation has run rampant about the latter casting, with fans speculating Sink could be playing anything from an alternate universe version of MJ to Jean Grey of the X-Men.
—Michileen Martin, MSNBC Newsweek, 1 Aug. 2025
But in a country where rumors run rampant and the U.S. has a weak investigatory presence, many Haitians are concerned about how designations or removals will be made.
—Jacqueline Charles, Miami Herald, 22 July 2025
See All Example Sentences for run rampant
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Elliott Wenzler, Denver Post, 18 Aug. 2025
The administration accused Harvard and other universities of allowing antisemitism to run rampant on campus amid pro-Palestinian demonstrations last year.
—Khaleda Rahman, MSNBC Newsweek, 30 July 2025
Speculation has run rampant about the latter casting, with fans speculating Sink could be playing anything from an alternate universe version of MJ to Jean Grey of the X-Men.
—Michileen Martin, MSNBC Newsweek, 1 Aug. 2025
But in a country where rumors run rampant and the U.S. has a weak investigatory presence, many Haitians are concerned about how designations or removals will be made.
—Jacqueline Charles, Miami Herald, 22 July 2025
See All Example Sentences for run rampant
Cite this Entry
“Run rampant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/run%20rampant. Accessed 27 Aug. 2025.
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