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English definition of “fog”

fog

noun [C/U]    /fɔɡ, fɑɡ/
a mass of cloud consisting of small drops of water near the surface of the earth : [U] Heavy fog made driving conditions dangerous . foggy    /ˈfɔ·ɡi, ˈfɑɡ·i/ adjective a cold , foggy day
(Definition of fog noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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