What does "rich" mean?

Additional senses

1. 2.Hence, in general, well supplied; abounding; abundant; copious; bountiful; as, a rich treasury; a rich entertainment; a rich crop. If life be short, it shall be glorious; Each minute shall be rich in some great action. Rowe. The gorgeous East with richest hand Showers on her kings barbaric pearl and gold. Milton.
2. 3.Yielding large returns; productive or fertile; fruitful; as, rich soil or land; a rich mine.
3. 4.Composed of valuable or costly materials or ingredients; procured at great outlay; highly valued; precious; sumptuous; costly; as, a rich dress; rich silk or fur; rich presents. Like to rich and various gems. Milton.
4. 5.Abounding in agreeable or nutritive qualities; -- especially applied to articles of food or drink which are high-seasoned or abound in oleaginous ingredients, or are sweet, luscious, and high- flavored; as, a rich dish; rich cream or soup; rich pastry; rich wine or fruit. Sauces and rich spices are fetched from India. Baker.
5. 6.Not faint or delicate; vivid; as, a rich color.
6. 7.Full of sweet and harmonius sounds; as, a rich voice; rich music.
7. 8.Abounding in beauty; gorgeous; as, a rich landscape; rich scenery.
8. 9.Abounding in humor; exciting amusement; entertaining; as, the scene was a rich one; a rich incident or character. [Colloq.] Thackeray. Note: Rich is sometimes used in the formation of self-explaining compounds; as, rich-fleeced, rich-jeweled, rich-laden, rich-stained.
9. 10.To enrich. [Obs.] Gower.