Definitions of precious:

• adjective:   of high worth or cost

  Example: "Diamonds, sapphires, rubies, and emeralds are precious stones"

• adjective:   characterized by feeling or showing fond affection for

  Example: "Children are precious"

• adjective:   obviously contrived to charm

  Example: "An insufferably precious performance"

• adverb:   extremely

  Example: "There is precious little time left"

• name:  A female given name (rare: 1 in 20000 females; popularity rank in the U.S.: #1413)