volume

A large amount of something; the amount of space occupied by something; the strength of a sound.

• voluminous/vəˈljuːmɪnəs/(adj)大量的；厚重的
• volumetric/ˌvɒljʊˈmɛtrɪk/(adj)体积的

• high volume
• sheer volume
• volume of work
• trading volume
• volume of calls
• volume of data
• manage the volume

1. 1.The sheer volume of requests has made it impossible to respond to each one individually within the usual timeframe.
2. 2.Trading volumes on the stock exchange fell sharply as investors adopted a wait-and-see approach.

• quantity/ˈkwɒntɪtɪ/— an amount of something
• amount/əˈmaʊnt/— a quantity
• mass/mæs/— a large quantity of something

from Latin "volumen" = a roll of writing, a book, from "volvere" (to roll)