intensity intensity /ˌɪnˈtɛnsɪti/

noun

1. () The amount of energy transmitted (as by acoustic or electromagnetic radiation)  ( intensity level , strength , intensity )
   the amount of energy transmitted (as by acoustic or electromagnetic radiation)
    He adjusted the intensity of the sound
   he adjusted the intensity of the sound
    They measured the station's signal strength
   they measured the station's signal strength
   
2. () High level or degree; the property of being intense  ( intensiveness , intensity )
   high level or degree; the property of being intense
     The intensity of his passion for the project was palpable.
   The intensity of his passion for the project was palpable.
   
3. Chromatic purity: freedom from dilution with white and hence vivid in hue  ( chroma , intensity , saturation , vividness )
   chromatic purity: freedom from dilution with white and hence vivid in hue
   
4. The magnitude of sound (usually in a specified direction)  ( intensity , loudness , volume )
   the magnitude of sound (usually in a specified direction)
    The kids played their music at full volume
   the kids played their music at full volume