Fog

/fɔɡ/

Meaning & Definition

noun
A thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface, which obscures visibility.
The fog rolled in from the sea, enveloping the coastal town in gray.
A state of mental confusion or lack of clarity.
After the long meeting, I felt a fog in my mind and struggled to concentrate.
verb
To cover or become covered with fog.
The windows fogged up from the steam of the hot soup.
To make unclear or confused.
The sudden noise fogged her thoughts, making it hard to think.

Etymology

Middle English 'fogge', of unknown origin.

Common Phrases and Expressions

in a fog
In a state of confusion or bewilderment.
fog of war
The uncertainty in situational awareness experienced by participants in military operations.
walking through a fog
Being in a confused or unclear state.

Related Words

mist
A meteorological phenomenon similar to fog but less dense.
haze
A slight obscuration of the air caused by fine suspended particles.
smog
Fog that has smoke or other pollutants mixed in.

Slang Meanings

To be confused or out of touch.
I'm totally fogged about what's happening in the meeting.
To obscure understanding or clarity.
His explanation just fogged things up more than they already were.