## Definition of prove

**:**to learn or find out by experience

**:**to test the truth, validity, or genuineness of

- the exception proves the rule

- prove a will at probate

**:**to test the worth or quality of; specifically

**:**to compare against a standard —sometimes used with

*up*or

*out*

**:**to check the correctness of (something, such as an arithmetic result)

**:**to establish the existence, truth, or validity of (as by evidence or logic)

- prove a theorem

- the charges were never
*proved*in court

**:**to demonstrate as having a particular quality or worth

- the vaccine has been
*proven*effective after years of tests

*proved*herself a great actress

**:**to show (oneself) to be worthy or capable

- eager to prove myself in the new job

**:**to turn out especially after trial or test

- the new drug
*proved*effective