Definition of endanger verb from the Oxford Advanced American Dictionary

 

endanger

 verb
verb
NAmE//ɪnˈdeɪndʒər//
 
endanger somebody/somethingVerb Forms present simple I / you / we / they endanger
 
he / she / it endangers
 
past simple endangered
 
-ing form endangering
 
 
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to put someone or something in a situation in which they could be harmed or damaged The health of our children is being endangered by exhaust fumes. That one mistake seriously endangered the future of the company. The sea turtle is an endangered species (= it may soon no longer exist). He denied possessing a rifle with intent to endanger life.
See the Oxford Advanced Learner's Dictionary entry: endanger