1. the amount of space that something occupies or contains
2. the degree of loudness of a sound
3. a book, especially one that is part of a series or set

Examples

• The volume of water in the tank is 50 gallons.
• Please turn down the volume on the television.
• She read the first volume of the encyclopedia.
• The volume of traffic increases during rush hour.
• This container has a volume of two liters.
• The volume of his voice filled the entire room.
• The library has multiple volumes of Shakespeare’s works.