murderer

noun

mur·​der·​er ˈmər-dər-ər 

: one who murders

especially : one who commits the crime of murder

Synonyms

• assassin
• killer

Examples of murderer in a Sentence

the murderer was sentenced to life in prison without the possibility of parole

Recent Examples on the Web

There is nothing here that indicates, as the late Professor Harbage has well said, that in order to be king hereafter Macbeth must be murderer first. —Emily Zarevich, JSTOR Daily, 3 Sep. 2025

If drug traffickers are a legitimate target, well then why aren't rapists, murderers and child abusers? —Carlo Versano, MSNBC Newsweek, 3 Sep. 2025

Comedian Edd Hedges returned home after a charity stand-up performance to find a murderer looking for him. —Peter White, Deadline, 2 Sep. 2025

Idaho State Police have released hundreds of additional images taken during their investigation into college murderer Bryan Kohberger, giving the first public glimpse of his spartan apartment in Pullman, just across the state line at Washington State University. —Michael Ruiz, FOXNews.com, 2 Sep. 2025

Word History

First Known Use

14th century, in the meaning defined above

Phrases Containing murderer

• mass murderer

Legal Definition

murderer

noun

mur·​der·​er ˈmər-dər-ər 

: a person who commits murder