Dictionary

An achromatic colour intermediate between black and white.

An animal or thing of grey colour, such as a horse, badger, or salmon.

An extraterrestrial humanoid with grayish skin, bulbous black eyes, and an enlarged head.

A penny with a tail on both sides, used for cheating.

To become gray.

Example: My hair is beginning to gray.

To cause to become gray.

To turn progressively older, alluding to graying of hair through aging (used in context of the population of a geographic region)

Example: the graying of America

To give a soft effect to (a photograph) by covering the negative while printing with a ground-glass plate.

Having a color somewhere between white and black, as the ash of an ember.

Dreary, gloomy.

Having an indistinct, disputed or uncertain quality.

Relating to older people.

Example: the gray dollar, i.e. the purchasing power of the elderly

In the International System of Units, the derived unit of absorbed dose of radiation (radiation absorbed by a patient); one joule of energy absorbed per kilogram of the patient's mass. Symbol: Gy