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Phrase(s): profit by something [and] profit from something
1. Lit. to gain money from something. • You will surely profit by investing in this stock. • I know I will profit from this investment. 2. Fig. to learn from something. • I am sure you will profit by your unpleasant experience. • Yes, I will profit from my failure.
McGrawhill's American Idioms And Phrasal Verbs