Yes, fog is playable
...and is worth 8 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Fog" Definition
noun
A blur on a developed photographic image.
A cloud of vaporized liquid, especially a chemical spray used in fighting fires.
A mist or film clouding a surface, as of a window, lens, or mirror.
A new growth of grass appearing on a field that has been mowed or grazed.
A state of mental vagueness or bewilderment.
verb
To cover, envelop, or suffuse with or as if with fog.
To make obscure or confusing.
To produce fog on (as a photographic film) during development.
To become covered or thick with fog.
verb-intransitive
To be blurred, clouded, or obscured: My glasses fogged in the warm air.
To be covered with or as if with fog.
To be dimmed or obscured. Used of a photographic image.
verb-transitive
To cause to be obscured; cloud.
To cover or envelop with or as if with fog.
To make vague, hazy, or confused: a memory that had been fogged by time.
To obscure or dim (a photographic image).
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