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Empirical Relating to or based on observation, experience, and experiment. ■ When the chef decided to make his famous dish empirically, he tasted it himself to ensure it was perfect.
Proven A statement or claim that has been verified through scientific experimentation or empirical evidence. ■ "I have proven that eating too many donuts leads to a longer lifespan! Just ask my grandfather, who's still alive and well at the age of 95!"