noun

fog

fog, mist, a state of confusion

The airport was closed because of thick fog.

The airport was closed because of thick fog.

He was in a fog of confusion.

He was in a fog of confusion.

((noun)) a thick cloud The airport was closed because of thick fog.

a ((noun)) of ((sth.)) a state of (sth.) He was in a fog of confusion.

Synonyms: mist, haze, smog

Likely from a Scandinavian source, related to Danish 'fog' (spray, shower, drift).

Think of a frog in a bog in the fog - a rhyming way to remember it.

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