rubicon

1. 1.

   the boundary in ancient times between Italy and Gaul; Caesar's crossing it with his army in 49 BC was an act of war

   Broaderboundary
2. 2.

   a line that when crossed permits of no return and typically results in irrevocable commitment

   Synonymspoint of no return

   Broaderline

Other forms of rubicon

plural

rubicons·

Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.

Questions about rubicon

What does rubicon mean?

rubicon means "the boundary in ancient times between Italy and Gaul; Caesar's crossing it with his army in 49 BC was an act of war". That is the primary sense; the word has 2 in total, listed in full on this page.

How many syllables are in rubicon?

rubicon has 3 syllables: ru-bi-con. The stress falls on "ru". In IPA it is /ˈɹubɪkɔn/.

What is another word for rubicon?

Close synonyms include point of no return. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is rubicon a common word?

rubicon is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.