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prevent

verb

pre·​vent pri-ˈvent How to pronounce prevent (audio)
prevented; preventing; prevents

transitive verb

1
: to keep from happening or existing
steps to prevent war
2
: to hold or keep back : hinder, stop
—often used with from
3
: to deprive of power or hope of acting or succeeding
4
archaic
a
: to be in readiness for (something, such as an occasion)
b
: to meet or satisfy in advance
c
: to act ahead of
d
: to go or arrive before

intransitive verb

: to interpose an obstacle
preventability
pri-ˌven-tə-ˈbi-lə-tē How to pronounce prevent (audio)
noun
preventable adjective
or less commonly preventible
pri-ˈven-tə-bəl How to pronounce prevent (audio)
preventer noun

Synonyms

Choose the Right Synonym for prevent

prevent, anticipate, forestall mean to deal with beforehand.

prevent implies taking advance measures against something possible or probable.

measures taken to prevent leaks

anticipate may imply merely getting ahead of another by being a precursor or forerunner or it may imply checking another's intention by acting first.

anticipated the question by making a statement

forestall implies a getting ahead so as to stop or interrupt something in its course.

hoped to forestall the sale

Example Sentences

Seatbelts in cars often prevent serious injuries. Can exercise and a healthy diet prevent heart disease? The accident could have been prevented. He grabbed my arm to prevent me from falling. Bad weather prevented us from leaving. How are you going to prevent him from finding out about the party? See More
Recent Examples on the Web Specifically, the Bengals could see more two-high safety looks to prevent explosive plays and force their talented offense to dink-and-dunk the ball down the field. Andrew Gillis, cleveland, 7 Sep. 2022 Prickles are thought to have evolved to prevent water loss and to protect the plant from pathogens and injury from animals — although my puppy is determined to disprove that last theory. Rita Perwich, San Diego Union-Tribune, 3 Sep. 2022 The brief argues granting the motion to dismiss will prevent unnecessary expense and burden and will further the interest of judicial economy and efficiency. Ron Wood, Arkansas Online, 3 Sep. 2022 This year’s Inflation Reduction Act provided a further boost to water systems, including funds to improve water access in vulnerable communities, prevent storm water runoff and mitigate drought. Brady Dennis And Sarah Kaplan, Anchorage Daily News, 1 Sep. 2022 There's also this Calphalon two-piece set, whose 8- and 10-inch nonstick pans prevent food from sticking and make cleanup a breeze. Sanah Faroke, Peoplemag, 29 Aug. 2022 However, Hardie Board fiber cement siding, which provides an authentically traditional look while helping to prevent damage from impacts and rot, was used instead. James Alexander, Hartford Courant, 26 Aug. 2022 The store is supposed to prevent and automatically cancel orders that don't match your original configuration, preventing upgrades. Scharon Harding, Ars Technica, 26 Aug. 2022 Use acid-free tissue to cover the gown and pad the folds to prevent creases and further splitting. Smithsonian Magazine, 25 Aug. 2022 See More

Word History

Etymology

Middle English, to anticipate, from Latin praeventus, past participle of praevenire to come before, anticipate, forestall, from prae- + venire to come — more at come

First Known Use

15th century, in the meaning defined at sense 4c

Time Traveler
The first known use of prevent was in the 15th century

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