Definition of "fog" []

  • Condensed water vapor in cloudlike masses lying close to the ground and limiting visibility. (noun)
  • An obscuring haze, as of atmospheric dust or smoke. (noun)
  • A mist or film clouding a surface, as of a window, lens, or mirror. (noun)
  • A cloud of vaporized liquid, especially a chemical spray used in fighting fires. (noun)
  • A state of mental vagueness or bewilderment. (noun)
  • A mass of droplets of condensed water vapour suspended in the air, often greatly reducing visibility, corresponding to a cloud but at a lower level (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • A cloud of any substance in the atmosphere reducing visibility (noun)
  • A state of mental uncertainty or obscurity (noun)
  • A blurred or discoloured area on a developed negative, print, or transparency caused by the action of extraneous light, incorrect development, etc (noun)
  • A colloid or suspension consisting of liquid particles dispersed in a gas (noun)
  • To envelop or become enveloped with or as if with fog (verb)
  • To confuse or become confused (verb)
  • To produce fog on (a negative, print, or transparency) or (of a negative, print, or transparency) to be affected by fog (verb) (c) HarperCollins Publishers Ltd 2016

Use "fog" in a sentence
  • "Trying to string together coherent sentences though the brain fog is hard."
  • "Dew is a precipitation of moisture which has not entered the peculiar state which we term fog or cloud, but has remained invisible in the air."
  • "For the private sector, one of the most important signals that cuts through the fog is the profit and loss statement."