Open English Wordnet
Nouns
(n)grey, grayclothing that is a grey color“he was dressed in grey” (n)grey, grayany organization or party whose uniforms or badges are grey“the Confederate army was a vast grey” (n)grey, grayhorse of a light gray or whitish color (n)gray, Gythe SI unit of energy absorbed from ionizing radiation; equal to the absorption of one joule of radiation energy by one kilogram of matter; one gray equals 100 rad Verbs
(v)grey, graymake grey“The painter decided to grey the sky” (v)grey, grayturn grey“Her hair began to grey” Adjectives
(s)grey, gray, greyish, grayishof an achromatic color of any lightness intermediate between the extremes of white and black“the little grey cells”,
“gray flannel suit”,
“a man with greyish hair” (s)grey, gray, grey-haired, gray-haired, grey-headed, gray-headed, grizzly, hoar, hoary, white-hairedshowing characteristics of age, especially having grey or white hair“whose beard with age is hoar” (Coleridge),
“nodded his hoary head” (s)grey, grayused to signify the Confederate forces in the American Civil War (who wore grey uniforms)“a stalwart grey figure” (s)grey, grayintermediate in character or position“a grey area between clearly legal and strictly illegal”