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English definition of “arson”

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arson

noun [U] uk   /ˈɑː.sən/ us    /ˈɑːr-/ ( UK also fire-raising)
the crime of intentionally starting a fire in order to damage or destroy something, especially a building: A cinema was burned out in north London last night. Police suspect arson.
arsonist
noun [C] uk   /-ɪst/ ( UK also fire-raiser) us  
Police are blaming arsonists for the spate of fires in the Greenfields housing estate.
(Definition of arson from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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SMART Thesaurus: Crimes against property

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