at a higher volume (6)
I believe the answer is:
louder
(Other definitions for louder that I've seen before include "More noisy or bright" , "'Actions speak . . . . . . than words'" , "Noisier or gaudier" , "Sound of greater volume" .)
I believe the answer is:
louder
(Other definitions for louder that I've seen before include "More noisy or bright" , "'Actions speak . . . . . . than words'" , "Noisier or gaudier" , "Sound of greater volume" .)