Pronunciation: (en-rich'),[key] —v.t. 1. to supply with riches, wealth, abundant or valuable possessions, etc.: Commerce enriches a nation. 2. to supply with abundance of anything desirable: to enrich the mind with knowledge. 3. to add greater value or significance to: Art enriches life. 4. to adorn or decorate: a picture frame enriched with gold. 5. to make finer in quality, as by supplying desirable elements or ingredients: to enrich soil. 6. to increase the proportion of a valuable mineral or isotope in (a substance or material): The fuel was enriched with uranium 235 for the nuclear reactor. 7. Nutrition. a. to restore to (a food) a nutrient that has been lost during an early stage of processing: to enrich flour with thiamine, iron, niacin, and riboflavin. b. to add vitamins and minerals to (food) to enhance its nutritive value.