Definition

1. Noun:

   • A thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface, significantly reducing visibility: Fog is a weather phenomenon similar to a cloud but occurring at ground level.
   • A state of mental confusion or obscurity: Fog can metaphorically describe a confused or unclear state of mind.

2. Verb:

   • To cover or become covered with or as if with fog: To make something less visible or clear by obscuring it.
   • To make confused or obscure: To cause someone's mind or an idea to become unclear.

Examples of Usage

• Noun:
  • The morning fog was so dense that we could barely see the road.
  • After the accident, his memory of the event was a complete fog.
• Verb:
  • The steam from the shower fogged the bathroom mirror.
  • Complex legal jargon can fog the meaning of a simple contract.

Advanced Usage

• "In a fog": In a state of mental confusion or bewilderment.
  • I've been in a fog all day since I didn't sleep well last night.
• "Fog of war": The uncertainty in situational awareness experienced by participants in military operations.
  • Decisions made in the fog of war are often incredibly difficult.

Variants and Related Words

• Foggy (adj): Full of or accompanied by fog; indistinct or vague.
  • It's a cold and foggy morning.
  • I only have a foggy idea of what happened.
• Fogbank (n): A dense mass of fog, especially over a body of water.
• Fogbound (adj): Confined or shut in by fog.

Synonyms

• Noun (weather): Mist, haze, smog, murk.
• Noun (confusion): Daze, stupor, bewilderment, obscurity.
• Verb: Obscure, cloud, blur, dim, befuddle.

Related Phrasal Verbs

• Fog up: To become covered with condensation, making a surface less transparent.
  • My glasses fog up every time I walk into a warm building from the cold.
• Fog over: To become covered or obscured with fog; for one's vision or mind to become blurred.
  • The windshield fogged over in the rain.
  • Her eyes fogged over with tears as she listened.

Related Idioms

• Not have the foggiest (idea): To have no idea at all; to be completely unaware.
  • I don't have the foggiest idea what you're talking about.

Noun

1. confusion characterized by lack of clarity
2. an atmosphere in which visibility is reduced because of a cloud of some substance
3. droplets of water vapor suspended in the air near the ground

Verb

1. make less visible or unclear
   • The stars are obscured by the clouds
   • the big elm tree obscures our view of the valley