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Definitions

Rubicon

[roo-bi-kon] / ˈru bɪˌkɒn /
NOUN
point of no return
Synonyms
WEAK
climax crossroads crunch decisive moment defining moment match point moment of truth terminus turning point when push comes to shove

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

Neither ever crossed the Rubicon in a way that would mobilize Americans to war, so we finally crossed the Rubicon ourselves.

From Barron's • Mar. 12, 2026

Jack asked me, knowing beyond doubt that he’d crossed the Rubicon.

From The Wall Street Journal • Jan. 26, 2026

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

From MarketWatch • Jan. 13, 2026

Julius Caesar’s army wouldn’t have left such a mess after crossing the Rubicon.

From "The Wednesday Wars" by Gary D. Schmidt