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Synonyms

endanger

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

verb (used with object)

  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

Other Word Forms

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.

“Who should I be angry with first?” said Pollack, who has co-written a book: “Why Meadow Died: The People and Policies That Created Parkland's Shooter and Endanger America's Students.”

From Los Angeles Times • Feb. 13, 2019

Subtle New Pollutants Endanger Health IT was only 106 years ago that experimenting British authorities closed down the common water pump in a busy London square and saw the bustling city's cholera rate drop dramatically.

From Time Magazine Archive

Those whom men call mad Endanger others; but he's more than mad That wounds himself, whose own words do proclaim Scandals unjust, to soil his better name: It is not fit; I pray, forsake it.

From A Yorkshire Tragedy by Shakespeare (spurious and doubtful works)

Then leave me, I conjure thee, nor again Endanger my repose.

From Percy A Tragedy by More, Hannah

Endanger, en-dān′jėr, v.t. to place in danger: to expose to loss or injury.—ns.

From Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) by Various