dollar volume vs turnover

dollar volume and turnover both are nouns.

Word	Noun	Adjective	Verb	Adverb
dollar volume	Yes	No	No	No
turnover	Yes	No	No	No

As nouns, dollar volume and turnover are synonyms defined as:

dollar volume (noun)	turnover (noun)
the volume measured in dollars	the act of upsetting something
	the volume measured in dollars
	a dish made by folding a piece of pastry over a filling
	the ratio of the number of workers that had to be replaced in a given time period to the average number of workers