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regicide

American  
[rej-uh-sahyd] / ˈrɛdʒ əˌsaɪd /

noun

  1. the killing of a king.

  2. a person who kills a king or is responsible for his death, especially one of the judges who condemned Charles I of England to death.


regicide British  
/ ˈrɛdʒɪˌsaɪd /

noun

  1. the killing of a king

  2. a person who kills a king

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • regicidal adjective

Etymology

Origin of regicide

1540–50; < Latin rēg-, stem of rēx king + -i- + -cide

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They predict confidently, the party "doesn't want regicide or disruption, they just want us to do well".

From BBC • Sep. 27, 2025

When Macbeth’s qualms about committing regicide get the better of him, she reprimands him mercifully.

From Los Angeles Times • May 1, 2024

Unsurprisingly, it was the redesigned M2 MacBook Air to commit this regicide.

From The Verge • Jul. 25, 2022

And while talk of regicide is easy, there are no reports of a deluge of letters of no confidence flooding in.

From Washington Post • Dec. 17, 2021

“I am an attainted traitor, a regicide, and kinslayer.”

From "A Dance with Dragons" by George R. R. Martin