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murderer

noun [C]
 
 
/ˈmɜː.dər.ər/ US  /ˈmɝː.dɚ.ɚ/ (old-fashioned female murderess)

Definition

B1 someone who illegally and intentionally kills another person: A convicted murderer was executed in North Carolina yesterday. a mass murderer (= someone who has killed a large number of people illegally)Murderers and attackers
(Definition of murderer noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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