grey
US /ɡreɪ/
UK /ɡreɪ/

1.
of a color intermediate between black and white, as of ash or lead
:
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The sky was a dull grey before the storm.
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She wore a simple grey dress.
2.
dull and uninteresting
:
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His life had become rather grey and monotonous.
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The future looked grey and uncertain.
1.
the color intermediate between black and white
:
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She painted the wall a light grey.
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The artist used various shades of grey in his painting.
1.
to make or become grey
:
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Stress can grey your hair prematurely.
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The old house had begun to grey with age and neglect.