1. past tense and past participle of prove; demonstrated to be true or correct through evidence or argument
2. showed oneself to have a particular quality or ability

Examples

• The scientist proved her theory with careful experiments.
• He proved that he was innocent of the charges.
• The new employee proved herself to be very reliable.
• The evidence proved the defendant’s guilt beyond doubt.
• She proved wrong all those who doubted her abilities.
• The test results proved the medicine was effective.
• Time proved that his predictions were accurate.