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English definition of “startle”

startle

verb [T] uk   /ˈstɑː.tl̩/ us    /ˈstɑːr.t̬l̩/
to do something unexpected that surprises and sometimes worries a person or animal: She was concentrating on her book and his voice startled her. The noise of the car startled the birds and the whole flock flew up into the air. Her article on diet startled many people into changing their eating habits.
startled
adjective uk   /-tl̩d/ us    /-t̬l̩d/
a startled expression
(Definition of startle from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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