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smew
smidgen
smilax
smile
smiley
smiley face
smilodon
smir
smirch
smirk
smirr
smite
smith
Smith grind
smithereens
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smog
smog [ smog ]


noun 
Definition:
 
thick dirty fog: a mixture of fog and smoke or other airborne pollutants such as exhaust fumes
[Early 20th century. Blend of smoke + fog]

smog·gy adjective
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