Cases of word usage

1) a precious stone which is purple or violet (amethyst)

2) the system of weights used, before metrication, in most English-speaking countries (1 pound = 16 ounces), used for all goods except precious metals and stones, and medicines (avoirdupois)

3) a brilliant precious stone, the hardest substance known (diamond)

4) (the colour of) a bright green precious stone (emerald)

5) a precious stone or jewel, especially cut or polished (gem)

6) a precious yellow metal used for making coins, ornaments, jewellery etc (gold)

7) too great, precious et to be estimated (inestimable)

8) a precious stone, such as a diamond, emerald of ruby (jewel)

9) a kind of red precious stone (ruby)

10) (an instance of) (an) offering of something precious to a god (sacrifice)