Thesaurus.com
Dictionary.com
Definitions

Rubicon

[roo-bi-kon] / ˈru bɪˌkɒn /


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.

See Examples For:

Miller served for a decade as chairman of Team Rubicon, a nonprofit that helps communities around the globe recover from disasters.

From Los Angeles Times ● May 1, 2026

"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

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

From "Into the Wild" by Jon Krakauer


Random Word

Spin the wheel and learn a new word!

Get a word

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember new words for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com