📒 to use facts, evidence, etc. to show that something is true
📒 if something proves dangerous, expensive, etc. or if it proves to be dangerous, etc., you discover that it is dangerous, etc. over a period of time
📒 to show other people how good you are at doing something or that you are capable of doing something
📒 to show other people that you are a particular type of person or that you have a particular quality
📒 to swell (= become larger or rounder) before being baked because of the action of yeast; to leave bread dough to prove
📒 people say that something is the exception that proves the rule when they are stating something that seems to be different from the normal situation, but they mean that the normal situation remains true in general