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3. prove out

prove out

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prove out something

also prove something out

to show that something is true Of the many accusations against her, only two ever proved out. I think there was better safety when there were more controls on the industry, but I don't know if the accident rates will prove that out or not.

See also: out, prove

prove out

Succeed, turn out well, as in Farm-raised trout has proved out so well that the fish industry plans to experiment with other species . [Mid-1900s]

See also: out, prove