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Synonyms

endanger

American  
[en-deyn-jeyr] / ɛnˈdeɪn dʒeɪr /

verb (used with object)

  • endangers,
    present (3rd person singular)
  • endangered,
    past participle,  past
  • endangering
    present participle
  1. to expose to danger; imperil.

    It was foolish to endanger your life in that way.

    Synonyms:
    risk, hazard, jeopardize, threaten

endanger British  
/ ɪnˈdeɪndʒə /

verb

  1. (tr) to put in danger or peril; imperil

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Etymology

Origin of endanger

late Middle English word dating back to 1400–50; see origin at en- 1, danger

Explanation

To endanger someone is to put them in a dangerous position, or to threaten their safety. It would endanger your little brother if you encouraged him to jump off the garage roof into a pile of leaves. Texting while you drive is a good way to endanger yourself, as well as your passengers and anyone else nearby. Scientists warn that climate change will slowly begin to endanger many plant and animal species on Earth, possibly including humans. This 15th century word combines the prefix en-, "make or put in" with danger, from the Old French dangier, "power to harm."

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Don’t force them to flout congressional intent or endanger lives in doing so.

From The Wall Street Journal Sep. 7, 2026

Managers at the newspaper also argued that her mention of “a white man” could endanger the physical safety of Post employees.

From Salon Aug. 25, 2026

A woman was cleared of possession of a firearm, possession of a firearm with intent to endanger life, and perverting the course of justice.

From BBC Aug. 8, 2026

“Those who escalate chaos and endanger officers will be held accountable. Today’s sentence reflects our commitment to protecting the men and women sworn to keep our communities safe.”

From Los Angeles Times Aug. 4, 2026

But he didn’t want to give Jordan the satisfaction of knowing that he had hurt him, and he didn’t want to endanger Angel.

From "Forged by Fire" by Sharon M. Draper

Unions and construction trade groups are warning that limiting construction endangers thousands of building-related jobs.

From The Wall Street Journal Sep. 2, 2026

Although it endangers his secret Traitor identity, he tries to protect Funches.

From Salon Jun. 20, 2026

The judge emphasized that Dobbs focused on a right to elective abortion, while Seyb’s case “tests how far Idaho may go when a woman’s pregnancy severely endangers her health.”

From Slate Jun. 16, 2026

None of this endangers the mathematical theory of relativity or the empirical science that confirms it.

From Science Daily Jun. 8, 2026

I will attempt to eat at the table, or read the newspaper there, but it’s so small and rickety that any wrong movement endangers the house.

From "Native Speaker" by Chang-rae Lee

Wildlife traffickers can face up to 10 years in prison for crimes involving protected species, or 15 years for endangered species.

From Barron's Sep. 10, 2026

At the same time, the administration has moved to weaken federal protections for endangered fish and other species.

From Los Angeles Times Sep. 9, 2026

"Just as we can predict population growth or endangered species, we can model the evolution of feelings within a couple," explains Pujo-Menjouet.

From Science Daily Sep. 7, 2026

The act protects endangered species from people who might intentionally kill or try to destroy their habitat.

From Los Angeles Times Sep. 5, 2026

That means that they are not as seriously missing as endangered, but almost.

From "The View From Saturday" by E.L. Konigsburg

As “laboratories of democracy,” the 50 states can each implement novel economic and social policies without endangering the entire country if they fail.

From The Wall Street Journal Sep. 8, 2026

But beyond their usability, the handles have been blamed for endangering the lives of drivers and passengers.

From BBC Aug. 26, 2026

Three men were arrested on Saturday in Gironde -- where a wildfire has already scorched 32,000 hectares -- on suspicion of endangering lives, prosecutors said.

From Barron's Jul. 26, 2026

Getting such a charter would give huge latitude to crypto banks, endangering unsophisticated investors, critics say.

From Slate Jul. 22, 2026

"Didn't you know you were endangering the school?"

From "Invisible Man" by Ralph Ellison

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