The verb prove has 9 senses (first 4 from tagged texts)
1. (59) prove, turn out, turn up -- (be shown or be found to be; "She proved to be right"; "The medicine turned out to save her life"; "She turned up HIV positive")
2. (48) prove, demonstrate, establish, show, shew -- (establish the validity of something, as by an example, explanation or experiment; "The experiment demonstrated the instability of the compound"; "The mathematician showed the validity of the conjecture")
3. (6) testify, bear witness, prove, evidence, show -- (provide evidence for; "The blood test showed that he was the father"; "Her behavior testified to her incompetence")
4. (4) prove -- (prove formally; demonstrate by a mathematical, formal proof)
5. test, prove, try, try out, examine, essay -- (put to the test, as for its quality, or give experimental use to; "This approach has been tried with good results"; "Test this recipe")
6. rise, prove -- (increase in volume; "the dough rose slowly in the warm room")
7. raise, leaven, prove -- (cause to puff up with a leaven; "unleavened bread")