fog

fog · noun

imported

Definitions

noun

  1. 1.

    A thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface, reducing visibility.

  2. 2.

    A state of confusion or bewilderment.

  3. 3.

    (as verb) To cover or become covered with fog or condensation.

  4. 4.

    (as verb) To confuse or obscure.

Phrases & expressions

  • in a fog — confused or disoriented
  • fog of war — the uncertainty in military operations
  • brain fog — mental confusion or lack of clarity

Related words

Antonyms: clarity, clearness
See also: haze, mist, smog
Synonyms: haze, mist, smog

Etymology

Perhaps from Scandinavian, related to Danish fog ("spray, shower, drift"), or possibly from foggy (grassy, from dialect fog meaning "long grass").