"grays" in the noun sense
1. gray, grayness, grey, greyness
a neutral achromatic color midway between white and black
2. grey, gray
clothing that is a grey color
"he was dressed in grey"
3. grey, gray
any organization or party whose uniforms or badges are grey
"the Confederate army was a vast grey"
4. grey, gray
horse of a light gray or whitish color
5. 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
6. 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)
7. Gray, Thomas Gray
English poet best known for his elegy written in a country churchyard (1716-1771)
8. Gray, Robert Gray
American navigator who twice circumnavigated the globe and who discovered the Columbia River (1755-1806)
9. 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)
"grays" in the verb sense
1. grey, gray
"The painter decided to grey the sky"
2. grey, gray
"Her hair began to grey"
Source: WordNet® (An amazing lexical database of English)
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