Rubicon (noun) Definition, Meaning & Examples

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noun
  1. a river in northern Italy flowing east into the Adriatic. 15 miles (24 km) long: crossed by Julius Caesar when he marched against Rome in 49 b.c.
  2. the act that commits someone to a particular course; point of no return: Publication serves as a Rubicon for authors, since they will be unable to edit their work afterward.
Idioms
  1. to take a decisive, irrevocable step: Our entry into the war made us cross the Rubicon and abandon isolationism forever.
noun
  1. a stream in N Italy: in ancient times the boundary between Italy and Cisalpine Gaul. By leading his army across it and marching on Rome in 49 bc, Julius Caesar broke the law that a general might not lead an army out of the province to which he was posted and so committed himself to civil war with the senatorial party
  2. a point of no return
  3. a penalty in piquet by which the score of a player who fails to reach 100 points in six hands is added to his opponent's
  4. to commit oneself irrevocably to some course of action
Rubicon (noun) Definition, Meaning & Examples

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