• noun:   high level or degree; the property of being intense
• noun:   the amount of energy transmitted (as by acoustic or electromagnetic radiation)

  Example: "He adjusted the intensity of the sound"

• noun:   chromatic purity: freedom from dilution with white and hence vividness of hue
• noun:   the magnitude of sound (usually in a specified direction)

Related words...
Descriptive words for intensity (New!)