/ Dictionary / Index R regicide: Meaning and Definition of Find definitions for: reg•i•cide Pronunciation: (rej'u-sīd"), [key] — n. the killing of a king. a person who kills a king or is responsible for his death, esp. one of the judges who condemned Charles I of England to death. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: regicide (Thesaurus) Reggy regime Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language