murderer

noun

mur·​der·​er ˈmər-dər-ər 

: one who murders

especially : one who commits the crime of murder

Synonyms of murderer

• 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

Fleming remains in the fold at Universal after being tapped for a role alongside a murderer’s row of fellow comics in the Judd Apatow-Glen Powell comedy The Comeback King, out February 5. — Matt Grobar, Deadline, 31 July 2026

In the somewhat convoluted progress of Mitchell’s script, their ego war is eventually eclipsed by fears there’s a genuine murderer on the loose — perhaps even an actual vampire. — Dennis Harvey, Variety, 31 July 2026

All these things tend to come out in the wash, and Indiana's schedule this upcoming season ain't exactly murderer's row. — Zach Dean Outkick, FOXNews.com, 31 July 2026

Not only did the scale of the broader violence across the South indicate a campaign to mass-murder an ethnic subgroup for political purposes, but Tillman, perhaps the most infamous of the Hamburg murderers, never denied the attack’s goals. — Jacob Ware, The Conversation, 31 July 2026

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