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 …

Definition of killer noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

A killer is someone or something that kills, such as a murderer or a serial killer. Killer may also refer to:

KILLER meaning: 1. someone who kills another person: 2. something that kills people, especially a disease or other…. Learn more.

A killer is a person who has killed someone, or who intends to kill someone. The police are searching for his killers. He's a psychopath, a killer.

Dec 15, 2025 · A person of interest identified in Saturday’s mass shooting at Brown University will be released from custody, authorities said late Sunday, sparking a manhunt for the killer. “Evidence now ...

1. One that kills: a disease that was a killer of thousands; a killer of new ideas. 2. Slang Something that is extremely difficult to deal with or withstand: an exam that was a real killer.

Nov 21, 2025 · There’s no shortage of serial killers who have shot to infamy over the course of U.S. history. We’re taking a look back at the crimes of Ted Bundy, Ed Gein, John Wayne Gacy, Jeffrey …

6 days ago · Thien Ho considers his book The People vs the Golden State Killer part of a ‘trilogy’ after two books by different authors Before Joseph DeAngelo, a 74-year-old navy veteran and former …

Apr 1, 2025 · Long Island Serial Killer suspect Rex Heuermann was charged with the murder of one more woman in December 2024, in addition to the six he was charged with previously. Here’s a …