brilliant

adjective6

1. •
   Shining brightly.

   • the brilliant lights along the promenade
2. •
   extremely good and impressive

   • The actor's performance in the play was simply brilliant.
3. •
   (UK) Great, wonderful.

   • https://youtu.be/aoag03mSuXQ?t=5139s He absolutely could have told us to get lost, and didn't. What a brilliant guy!
4. •
   Highly intelligent.

   • She is a brilliant scientist.
5. •
   Both bright and saturated.

   • butterflies with brilliant blue wings
6. •
   Having a sharp, clear tone.

noun4

1. •
   A finely cut gemstone, especially a diamond, cut in a particular form with numerous facets so as to maximize light return through the top (called "table") of the stone.

   • This snuffbox — on the hinge see brilliants shine. — 1717
2. •
   Most hummingbird species of the genus Heliodoxa.
3. •
   A kind of cotton goods, figured on the weaving.
4. •
   (old-fashioned) The size of type between excelsior and diamond, standardized as 4-point.

verb1

1. •
   To cut (a diamond) with many facets, to make it into a brilliant.

   • In short, the diamond owed more to being brillianted and polished, and well set, than to any intrinsic worth or solidity. — 1851

noun1

1. •
   A town in Marion County, Alabama, United States.