Available Definitions:
1) superl. - White mixed with black, as the color of pepper and salt, or of ashes, or of hair whitened by age; sometimes, a dark mixed color; as, the soft gray eye of a dove.
2) superl. - Gray-haired; gray-headed; of a gray color; hoary.
3) superl. - Old; mature; as, gray experience. Ames.
4) n. - A gray color; any mixture of white and black; also, a neutral or whitish tint.
5) n. - An animal or thing of gray color, as a horse, a badger, or a kind of salmon.