trey

noun6

1. •
   A playing card or die with the rank of three.

   • Before you begin the Game at Picket, you must throw out of the Pack the Deuces, Treys, Fours and Fives, and play with the rest of the Cards, which are in number thirty and six. — 1674
2. •
   A score of three in cards, dice, or dominoes.
3. •
   (informal) The third bearer of the same personal name in a family, often denoted by suffixed Roman numeral III.
4. •
   (Australia, informal) A three penny coin; a thrippence.
5. •
   The third branch of a deer's antler.
6. •
   (US, informal) A three-pointer.