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Added 9 October 2026

loudness

noun

noun Definition from Wiktionary (CC BY-SA). More about loudness at Wordnik → Where our words come from →

Strength of sound: how loud it is.
The perceptual strength or amplitude of sound pressure, measured in sones or phons.
The physical strength of the sound pressure level, measured in decibels.

Origin

From Middle English loudnesse, lowdenesse, from Old English hlūdnes, equivalent to loud + -ness.

From Wiktionary, via Kaikki.org (CC BY-SA)

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