Wiktionary
turn a profit
vb. 1 (context idiomatic English) To obtain profit from an investment. 2 (context idiomatic by extension English) To gain money or to gain materially.
WordNet
turn a profit
v. make a profit; gain money or materially; "The company has not profited from the merger" [syn: profit] [ant: lose, break even]
Usage examples of "turn a profit".
It looks to me like the Big Boys have found a way to settle a few old scores and turn a profit at the same time.
If I do all the things you suggested, we'd have to turn a profit much sooner.
I can offer better odds than any other casino on Lorelei and still turn a profit.
Even if you stayed loyal to our group, I don't think I want to be associated in business with someone who thinks that's the way to turn a profit.