S: (n) grey, gray (clothing that is a grey color) "he was dressed in grey"
S: (n) grey, gray (any organization or party whose uniforms or badges are grey) "the Confederate army was a vast grey"
S: (n) grey, gray (horse of a light gray or whitish color)
S: (n) gray, Gy (the 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)
S: (n) Gray, Louis Harold Gray (English radiobiologist in whose honor the gray (the SI unit of energy for the absorbed dose of radiation) was named (1905-1965))
S: (n) Gray, Thomas Gray (English poet best known for his elegy written in a country churchyard (1716-1771))
S: (n) Gray, Robert Gray (American navigator who twice circumnavigated the globe and who discovered the Columbia River (1755-1806))
S: (n) Gray, Asa Gray (United States botanist who specialized in North American flora and who was an early supporter of Darwin's theories of evolution (1810-1888))
Verb
S: (v) grey, gray (make grey) "The painter decided to grey the sky"
S: (v) grey, gray (turn grey) "Her hair began to grey"
Adjective
S: (adj) grey, gray, greyish, grayish (of 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"