Definition of killer noun from the Oxford Advanced Learner's Dictionary

     

    killer

     noun
    noun
    BrE BrE//ˈkɪlə(r)//
     
    ; NAmE NAmE//ˈkɪlər//
     
     
    jump to other results
  1. 1a person, an animal or a thing that kills Police are hunting his killer. Heart disease is the biggest killer in Scotland. an electric insect killer The players lacked the killer instinct. see also ladykiller, serial killer
  2. 2(informal) something that is very difficult, very exciting or very skilful The exam was a real killer. The new movie is a killer.
  3. Extra examples FBI agents identified his killers. For years the killer stalked Detroit and its suburbs undetected. He plays well but still lacks the killer instinct. He turned to face his would-be killer. Heart attacks have become Britain’s No. 1 killer disease. Heart attacks have become our number one killer disease. High blood pressure is known as a silent killer. I cannot rest until this killer is brought to justice. I don’t care what they ask me if it helps them find the real killer. I want to stop the killer before he strikes again. In the 19th century, cholera was one of Britain’s deadliest killers. Matthew’s reputation as a cold-blooded killer Overdoses were the single biggest killer among the city’s young. Owen delivered the killer blow soon after half-time. Salford Juniors proved to be the giant killers in last week’s semi-finals. The killer has struck again. The killer wave struck a tiny atoll in the Maldives. There is still no vaccine against this potential killer. This killer storm is strengthening rapidly in the Gulf of Mexico. a convicted child killer a serial killer who murders newlyweds on their honeymoon the trial of her daughter’s accused killers