noun
volume
VAHL-yum/ˈvɑːljəm/
The amount of space occupied or the quantity present.
The stone's volume displaces water and raises its level in the container.

Etymology
Latin volumen named a rolled manuscript, hence a book. The bulk or size of a book supplied the bridge to solid mass and then to the amount of space something occupies.
In context
Volume is the amount of space particles have to exist inside of.
More examples
- Multiply length, width, and height to find the box's volume.
- The office handles a high volume of calls.
- Mix equal volumes of oil and vinegar.
Forms
volume · volumes
volumetric adjective — Relating to the measurement of volume.