noun / adjective
diamond
A four-sided figure with equal sides, shown resting on a corner.
She draws a diamond with four equal sides on the board.
Etymology
Greek adamas named an exceptionally hard substance and then diamond. The geometric sense takes its shape from a conventional pointed representation of the gem.
More examples
- A blue diamond pattern covers the white kitchen tiles.
- He plays the ace of diamonds.
- The four bases mark the corners of the baseball diamond.
Forms
diamond · diamonds