DictionaryfogObscuring mist
noun / verb

fog

FAWG/fɔːɡ/

Suspended droplets that cloud the air and obstruct sight.

Dense fog hides the distant fence posts along the meadow path.

A low bank of dense fog envelops a simple meadow path and fence, with nearby posts clearly visible and successive posts disappearing into pale mist at ground level.
Etymology

Fog is recorded with its familiar meaning of thick mist near the ground. It may have been formed from foggy or come directly from a Scandinavian source related to words for spray and drifting snow.

In context

SciShow Kids0:46
fog does look a lot like clouds, except really close to the ground!
Where Does Fog Come From? | Weather Science | SciShow Kids

More examples

  • Steam from the shower fogs the bathroom mirror.
  • Dense fogs often delay flights at this coastal airport.
  • After a sleepless night, I spend the morning in a fog.

Forms

fog · fogs · fogged · fogging

foggy adjective — Filled with fog or covered in mist.

Similar words

mist
Usually thinner than fog and allows better visibility.
haze
Often caused by dust or smoke rather than droplets.