Rubicon

/'ru:bikən/
Học thuật
Thân thiện
Definition
  1. Proper noun:
    • A point of no return; a decisive boundary: A "Rubicon" is a figurative line or limit that, once crossed, signifies an irreversible commitment to a particular course of action, often one involving significant risk or consequence.
    • A historical river: In ancient geography, the Rubicon was a small river that formed the boundary between Italy and the Roman province of Gaul. Its crossing by Julius Caesar with his army in 49 BC was an act of treason that precipitated a civil war, making it a symbol of a fateful and irrevocable decision.
Examples of Usage
  • Proper noun (Figurative):
    • Signing that contract was her Rubicon; there was no turning back from the deal.
    • The scientist knew that publishing the controversial paper meant crossing a Rubicon in her career.
  • Proper noun (Historical):
    • In 49 BC, Caesar led his legion across the Rubicon, uttering the famous phrase "alea iacta est" (the die is cast).
Advanced Usage
  • "to cross the Rubicon": To take a decisive, irreversible step.
    • By announcing his candidacy, the politician has crossed the Rubicon.
  • "a Rubicon moment": A critical juncture that demands a final, binding decision.
    • The company faced a Rubicon moment: invest in new technology or risk obsolescence.
Variants and Related Words
  • Rubiconian (adj, rare): Pertaining to the Rubicon or a point of no return.
    • The decision had a Rubiconian finality to it.
Synonyms
  • Point of no return: The stage in a process where it is impossible to stop or reverse course.
  • Threshold: A point of entry or beginning, especially of a critical stage.
  • Watershed: A turning point or critical moment.
Related Idioms
  • "Cross the Rubicon": This is the primary and most common idiom associated with the word. It means to take a decisive, irreversible step.
    • He crossed the Rubicon when he resigned from his stable job to start his own business.
  • "The die is cast": This phrase, famously uttered by Caesar upon crossing the Rubicon, is a closely related idiom meaning a decision has been made and the consequences must follow.
    • We've submitted our bid. The die is cast.
Noun
  1. a line that when crossed permits of no return and typically results in irrevocable commitment
  2. the boundary in ancient times between Italy and Gaul; Caesar's crossing it with his army in 49 BC was an act of war

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