cross the Rubicon


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Related to cross the Rubicon: passed the Rubicon

cross the Rubicon

To commit to a particular plan or course of action that cannot be reversed. The phrase refers to how Julius Caesar crossed the Rubicon river and became embroiled in civil war in 49 BCE. Look, if you cheat on this test, you are crossing the Rubicon, man. You can't take that back. I think I crossed the Rubicon when I took this management position. It would be a huge pay cut to go back to my old job, and my boss would be furious.
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cross the Rubicon

Fig. to do something that inevitably commits one to following a certain course of action. (Alludes to the crossing of the River Rubicon by Julius Caesar with his army, which involved him in a civil war in B.C. 49.) Jane crossed the Rubicon by signing the contract. Find another job before you cross the Rubicon and resign from this one.
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cross the Rubicon

Irrevocably commit to a course of action, make a fateful and final decision. For example, Once he submitted his resignation, he had crossed the Rubicon. This phrase alludes to Julius Caesar's crossing the Rubicon River (between Italy and Gaul) in 49 b.c., thereby starting a war against Pompey and the Roman Senate. Recounted in Plutarch's Lives: Julius Caesar (c. a.d. 110), the crossing gave rise to the figurative English usage by the early 1600s.
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cross the Rubicon

FORMAL
If you cross the Rubicon, you make an important decision which cannot be changed and which will have very important consequences. Today the Government has crossed the Rubicon in favour of the Euro. In England and Wales the Rubicon has been crossed regarding the charging of fees to students. Note: This expression is variable, for example people sometimes talk about the crossing of the Rubicon or a crossing of the Rubicon. Such a decision would be a crossing of the Rubicon. Note: Sometimes this important decision is referred to as a person's Rubicon. There would be no turning back; if he was making a big mistake, this was his Rubicon. Note: The Rubicon was a small river which separated Roman Italy from Gaul, the province ruled by Julius Caesar. Caesar crossed the Rubicon in 49 BC, invaded Roman Italy, and started a civil war. `The die is cast' is based on the same incident.
See also: cross, Rubicon

cross the Rubicon

take an irrevocable step.
The Rubicon was a small river in north-east Italy which in the first century bc marked the boundary of Italy proper with the province of Cisalpine Gaul. By taking his army across the Rubicon into Italy in 49 bc , Julius Caesar broke the law forbidding a general to lead an army out of his own province, and so committed himself to war against the Senate and Pompey.
See also: cross, Rubicon

cross the ˈRubicon

(formal) reach a point where an important decision is taken which cannot be changed later: Today we cross the Rubicon. There is no going back.The Rubicon was a stream which formed the border between Italy and Gaul. When Julius Caesar broke the law by crossing it with his army, it led inevitably to war.
See also: cross, Rubicon
References in periodicals archive ?
Caius Julius Caesar, a Roman general, crossed the ancient watery boundary between Cisaplin Gaul and Italy known as the River Rubicon, thus making immortal the phrase "to cross the Rubicon," meaning "to take a decisive and irrevocable step.
We may cross the Rubicon in less than ten years, according to the Institute for Public Policy Research, the Centre for American Progress and the Australia Institute.
To cross the Rubicon under arms and march on Rome to seek the consulship was therefore a flagrant violation of multiple legal and political conventions, in a society where law, tradition, and precedent still mattered a great deal.
Marcus: But, sir, it is illegal for you to cross the Rubicon with your men.
EVEN though they don't have all their oars in the water, the City Council seems ready to cross the Rubicon over the departure of LAPD Inspector General Katherine Mader.
TWO horses have been doubly declared today: Cross The Rubicon - First pref Plumpton 4.
Thus Caesar's decision to cross the Rubicon was a free act because its cause was internal to Caesar, it was contingent for us, because we cannot perform the infinite analysis to discover within the complete idea of Caesar the predicate that was this action; and it was necessary, both because the complete idea of Caesar does contain this predicate, and because in the best of all possible worlds everything is determined.
3) After years of feeling increasingly rejected by a society 'which sanctioned the enslavement of the weaker sex and the spoliation of the orphan', (4) Tristan decided that the time had come to take risks and cross the Rubicon.
When President Duterte announced last October that we would have to cross the Rubicon, were the people consulted if we have to cross the Rubicon?
An individual becomes so desperate that they cross the Rubicon into an absolute belief system, where you believe you are the sword of the Lord,''Mr Yardley said.
Duterte said he had talked to both Chinese President Xi Jinping and Russian Prime Minister Dmitry Medvedev about his plan to 'open up all avenues of trade and commerce' for China and Russia because he was 'about to cross the Rubicon between me and the United States, at least for the six years.
Gerry Adams and republicanism must cross the Rubicon, cast aside the gun and honestly embrace democracy.
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