What musical term refers to the volume a passage of music is performed?

The musical term that refers to the volume a passage of music is performed at is "dynamics". Dynamics are indicated in musical notation through the use of various symbols and abbreviations, such as "p" (piano) for soft, "f" (forte) for loud, and "mp" (mezzo piano) for moderately soft. These symbols provide instructions to the performers to adjust the volume of their playing accordingly. By controlling dynamics, musicians can create a variety of expressive effects and convey different moods, emotions, and musical interpretations.