please explain the difference between pitch and volume in sound

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pitch = 4 a : the relative level, intensity, or extent of some quality or state <tensions rose to a feverish pitch> b (1) : the property of a sound and especially a musical tone that is determined by the frequency of the waves producing it : highness or lowness of sound (2) : a standard frequency for tuning instruments c (1) : the difference in the relative vibration frequency of the human voice that contributes to the total meaning of speech (2) :

5 : the degree of loudness or the intensity of a sound; also : loudness