Rubicon

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.

"But it was a little bit more than that. It was forging through a Rubicon that was never forged through before. It was debated in the Houses of Parliament," he said.

From BBC • Apr. 10, 2026

Schneiderman said it is "highly unlikely that the US will choose to use nuclear weapons against Iran. It is the ultimate Rubicon to cross."

From Barron's • Apr. 7, 2026

But history shows the current battle for the strait is just the latest iteration of a centuries-old fight to control the critical trade route—and why it has become a Rubicon for American presidents.

From The Wall Street Journal • Mar. 22, 2026

At some point, the proverbial Rubicon will be crossed, and there may be serious cause for alarm.

From MarketWatch • Jan. 13, 2026

He never suspected that in so doing, he was crossing his Rubicon.

From "Into the Wild" by Jon Krakauer