diamond

noun

1. 1

   the baseball playing field

2. 2

   the area of a baseball field that is enclosed by 3 bases and home plate

3. 3

   a playing card in the minor suit that has one or more red rhombuses on it

   he led a small diamond

   diamonds were trumps

4. 4

   a transparent piece of diamond that has been cut and polished and is valued as a precious gem

5. 5

   a parallelogram with four equal sides; an oblique-angled equilateral parallelogram

6. 6

   very hard native crystalline carbon valued as a gem