Testify
Part of speech: verb
Definition: to make a declaration, or give evidence, under oath to make a statement based on personal knowledge or faith
Example sentence: Let no vandalism of avarice or neglect, no ravages of time, testify to the present or to the coming generations, that we have forgotten, as a people, the cost of a free and undivided Republic.
Prove
Part of speech: verb
Definition: To demonstrate that something is true or viable; to give proof for.To turn out; to manifest.To turn out to be.To (put to the) test, proofTo experienceTo proofread.
Example sentence: The good part about getting older is you stop trying to prove anything to anyone, including yourself. All you are in the pursuit of is collecting experiences - beautiful, fragile little soap bubbles that you store in your heart, and every once in a while you pull one out and gaze at the delicate pictures it shows you.