To make (someone or something) rich or richer.
To add nutrients or fertilizer to the soil; to fertilize.
To increase the amount of one isotope in a mixture of isotopes, especially in a nuclear fuel.
To adorn, ornate more richly.
To add nutrients to foodstuffs; to fortify.
To make to rise the proportion of a given constituent.
To enhance.
To achieve benefits, especially financial ones, by taking advantage of the opportunities with which one is presented; to amass a comfortable amount of personal wealth.