Looking up...
The library has a large volume of books.
The library has many books.
the amount of space that something occupies
The volume of the box is 10 cubic meters.
The box occupies 10 cubic meters of space.
the amount or quantity of something
The volume of sales increased last quarter.
The quantity of sales went up last quarter.
the loudness or softness of sound
Turn down the volume on the TV.
Make the TV quieter.
a single book in a series or collection
This is volume 3 of the encyclopedia.
This is the third book in the encyclopedia series.
Remember that 'volume' can refer to space, quantity, or sound, depending on the context.
Use 'volume' to describe space, quantity, or loudness, but not for abstract concepts like 'volume of work' unless referring to a measurable amount.
From Middle English 'volum', from Old French 'volum', from Latin 'volumen' meaning 'a roll of writing, a book'.
In technical contexts, 'volume' can refer to the amount of space something occupies, while in everyday language, it often refers to quantity or loudness.