the perceptual strength or amplitude of sound pressure, measured in sones or phons / the physical strength of the sound pressure level, measured in decibels

plural of loudness

(of a sound) Of great intensity. / (of a person, thing, event, etc.) Noisy. / (of a person, event, etc.) Not subtle or reserved, brash.

(colloquial) A loud sound or part of a sound. / (slang, uncountable) High-quality marijuana.

Loudly.

(countable) A surname. / Clipping of McLoud.: A surname from Scottish Gaelic. / Ellipsis of River Loud. / Ellipsis of Loud Township.

(obsolete) Sound.

plural of loud

plural of loude

(music production) The practice of mastering albums to such an extent that it distorts their sound quality.