The meaning of killer is one that kills. How to use killer in a sentence. Definition of killer noun in oxford advanced learner's dictionary.

What is a basic definition of killer? A killer is a person or thing that kills, meaning they end lives. Killer is also used in slang to mean something that is devastating or exhausting. Additionally, killer is used in Ò€¦ Someone who kills another person: Something that kills people, especially a disease or otherÒ€¦. Learn more.

Someone who kills another person: Something that kills people, especially a disease or otherÒ€¦. Learn more. Someone who kills another person: Something that kills people, especially a disease or otherÒ€¦. Learn more. Strictly speaking, a serial killer is someone who murders at least two people in separate events that occur at different times.

Learn more. Strictly speaking, a serial killer is someone who murders at least two people in separate events that occur at different times.