• hair
  7.36%
  Both have gray hair.
• area
  6.90%
  It was a gray area.
• suit
  6.67%
  She was wearing a demure gray suit.
• sky
  3.53%
  Those gray skies promise rain.
• flannel
  2.36%
  She was the gray flannel gal.
• cloud
  1.57%
  Dark gray clouds shrouded the mountains to the north.
• smoke
  1.54%
  Tiny gusts of gray smoke rose from the ruins.
• beard
  1.47%
  Somehow, a gray beard does.
• day
  1.24%
  I had seen too many gray days.
• slack
  1.05%
  Blue suit with gray slacks?

• cloudy
  18.50%
  Cloudy skies were forecast.
• sunny
  14.01%
  A sunny sky.
• blue
  10.90%
  Blue skies.
• clear
  8.02%
  She looked up at the clear sky.
• open
  3.99%
  The open sky.
• overcast
  2.93%
  It was as dull as the overcast sky.
• gray
  2.16%
  Those gray skies promise rain.
• fair
  1.74%
  Fair skies west.
• cloudless
  1.64%
  Cloudless sky.
• dark
  1.44%
  Birds circled in the dark sky.