vol‧ume S3 W2 AC / vɒljum $ vɑljəm / 名词

1 sound [不可数名词] the amount of sound produced by a television, radio etc

turn the volume up/down

Can you turn the volume up?

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In everyday English, people usually say turn something up or turn something down rather than use the 名词 volume :

Can you turn the TV up a bit?

She’s always yelling at us to turn our music down .

2 amount of something [可数名词，通常单数，不可数] the total amount of something, especially when it is large or increasing

volume of

The volume of traffic on the roads has increased dramatically in recent years.

the volume of trade

3 space filled [可数名词，通常单数] a measurement of the amount of space that a substance or object fills, or the amount of space in a container

volume of

an instrument for measuring the volume of a gas

The volume of the container measures 10,000 cubic metres.

4 book [可数名词] ( written abbreviation vol. )

a) a book that is part of a set, or one into which a very long book is divided :

The period from 1940–45 is in volume 9.

b) formal a book

volume of

a volume of Keats’s poetry

c) all the copies of a particular magazine printed in one particular year

→ speak volumes at speak ( 9 )