# Siena vs sine

> English confusable word pair

## The two words

### Siena
*name · IPA /siˈɛnə/ · frequency rank #30,970*
A city and comune, the capital of the province of Siena, Tuscany, Italy.

### sine
*noun · IPA /saɪn/ · frequency rank #25,577*
In a right triangle, the ratio of the length of the side opposite an angle to the length of the hypotenuse.

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