Meanings of cross a rubicon in English

That night, without being aware of it, Mrs. Armine crossed a Rubicon.

There was a fierce joy that burned without consuming, and a consciousness of having crossed a rubicon.

Julius arrived with the cigars as tardily as if he had had to cross a Rubicon in the back room.

Louth County Council crossed a Rubicon of sorts last week when it adopted a grossly overblown local area plan for the village of Dunleer.

The new Greek prime minister has crossed a Rubicon in asking for an extension to the country's hated bailout programme while abandoning many election promises.

IN ANNOUNCING his "enhanced surge" in Afghanistan, US president Barack Obama has crossed a Rubicon that will define the rest of his presidency.