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fog

1
[ fog, fawg ]
/ fɒg, fɔg /
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noun
verb (used with object), fogged, fog·ging.
verb (used without object), fogged, fog·ging.
to become enveloped or obscured with or as if with fog.
Photography. (of a negative or positive) to become affected by fog.

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Origin of fog

1
First recorded in 1535–45; perhaps by back formation from foggy. See fog2

synonym study for fog

3. See cloud.

OTHER WORDS FROM fog

fogless, adjectiveun·fogged, adjectiveun·fog·ging, adjective

Other definitions for fog (2 of 2)

fog2
[ fog, fawg ]
/ fɒg, fɔg /

noun U.S. and British Dialect.
a second growth of grass, as after mowing.
long grass left standing in fields during the winter.

Origin of fog

2
1300–50; Middle English fogge, fog<Scandinavian; compare Norwegian fogg long grass on damp ground, foggy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use fog in a sentence

British Dictionary definitions for fog (1 of 2)

fog1
/ (fɒɡ) /

noun
verb fogs, fogging or fogged

Word Origin for fog

C16: perhaps back formation from foggy damp, boggy, from fog ²

British Dictionary definitions for fog (2 of 2)

fog2
/ (fɒɡ) /

noun
  1. a second growth of grass after the first mowing
  2. grass left to grow long in winter

Word Origin for fog

C14: probably of Scandinavian origin; compare Norwegian fogg rank grass
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for fog

fog
[ fôg ]

A dense layer of cloud lying close to the surface of the ground or water and reducing visibility to less than 1 km (0.62 mi). Fog occurs when the air temperature becomes identical, or nearly identical, to the dew point.
An opaque or semiopaque condensation of a substance floating in a region or forming on a surface.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Other Idioms and Phrases with fog

fog

see in a fog.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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