Meaning of the word sone in English

What does sone mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

sone

US /soʊn/
UK /səʊn/

Noun

a unit of perceived loudness, equal to the loudness of a 1000-hertz tone at 40 decibels above the listener's threshold of hearing

Example:
The sound level was measured at 50 sones.
This new fan operates at a very low sone level, making it quiet.