# sone vs sou

> English confusable word pair

## The two words

### sone
*noun · IPA /soʊn/ · frequency rank #48,495*
a subjective unit of loudness for an average listener equal to the loudness of a 1000-hertz sound that has an intensity 40 decibels above the listener's own threshold of hearing

### sou
*noun · IPA /suː/ · frequency rank #35,525*
An old French copper coin equal to one twentieth of a livre or twelve deniers; one sou is to the livre as one shilling is to the pound.

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