# Rubicon vs Rubio

> English confusable word pair

## The two words

### Rubicon
*name · IPA /ˈɹuːbɪkɒn/ · frequency rank #41,361*
A small river in northeastern Italy which flowed into the Adriatic Sea marking the boundary between the Roman province of Gaul and the Roman heartland. Its crossing by Julius Caesar in 49 B.C.E. began a civil war.

### Rubio
*name · IPA /ˈɹubioʊ/ · frequency rank #15,900*
A surname from Spanish.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/rubicon-vs-rubio