Sound

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to quiver, as sound; resonate or resound

the act or process of pressing down on or together, causing flattening or condensing.

the degree of loudness of sound.

in physics, a measurement of the height of a wave.

anything that people or animals hear with their ears.

the high or low quality of a sound or note in music.

the repeating of a sound caused by the bouncing of sound waves from a surface.

a curve or curves, especially when moving; undulation.