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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

Other Word Forms

Derived 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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