definition of
gem

[1] #1 gem n. [treasure] art highly prized for its beauty or perfection. wn

[2] #2 gem n. [gemstone, stone] a crystalline rock that can be cut and polished for jewelry; "he had the gem set in a ring for his wife"; "she had jewels made of all the rarest stones". wn

[3] #3 gem n. [jewel] a person who is as brilliant and precious as a piece of jewelry. wn

[4] #4 gem n. [muffin] a sweet quick bread baked in a cup-shaped pan. wn

[5] #5 gem n. [jewel, precious stone] a precious or semiprecious stone incorporated into a piece of jewelry. wn