Meanings
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1
verb
to cover with clouds or cause to become dark, dim, or overcast
A bank of mist began to overcloud the valley.
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2
verb
to make a feeling, expression, or situation gloomy or obscure
News of the accident could overcloud the entire celebration.
Thesaurus
Etymology
Formed from over- + cloud. The physical sense, 'cover with clouds,' was extended figuratively to emotions, faces, and events made gloomy or obscure.