Added 9 October 2026 sone /soʊn/ noun Categories: Describing WordsRare Words Latin root: sonus Wiktionary noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about sone at Wordnik → Where our words come from → A unit of perceived loudness equal to the loudness of a 1000-hertz tone at 40 dB above threshold. Origin From Latin sonus (“sound”). From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: loudnessphonvolumehypersoundsignal-to-noisephononintensimetryultrasound Back to today's word