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English definition of “accident”

accident

noun [C] uk   /ˈæk.sɪ.dənt/ us  
A2 something bad that happens that is not expected or intended and that often damages something or injures someone: Josh had an accident and spilled water all over his work. She was injured in a car/road accident (= when one car hit another). by accident B1 without intending to, or without being intended: I deleted the file by accident. I found her letter by accident as I was looking through my files.
(Definition of accident from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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