Synonym: blur, cloud, confuse, dim. Similar words: for, log, cor, do., gob, long., pop., veg. Meaning: [fɑg ,fɔg /fɒg] 
n. 1. droplets of water vapor suspended in the air near the ground 2. an atmosphere in which visibility is reduced because of a cloud of some substance 3. confusion characterized by lack of clarity. v. make less visible or unclear.
n. 1. droplets of water vapor suspended in the air near the ground 2. an atmosphere in which visibility is reduced because of a cloud of some substance 3. confusion characterized by lack of clarity. v. make less visible or unclear. 
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31) Dense fog is covering roads in the north and visibility is very poor.
32) All flights between New York and Washington have been cancelled due to fog.
33) Fog severely restricted visibility.
34) The fog is rifted.
35) In addition to the thick fog, there was a heavy swell.
36) The town was covered in a thick blanket of fog.
37) The fog was so thick that I could not see my way.
38) Through the fog we saw the vague outline of a ship.
39) Dense / thick fog is affecting roads in the north and visibility is poor.
40) Visibility was down to about 100 metres in the fog.
41) We could just manage to see the form of an aircraft taking off in the fog.
42) The ship, with the help of radar,(http://Sentencedict.com) sailed in thick fog.
43) The thick fog seemed to have infiltrated through the very walls into the room.
44) The sun soon dispelled the thick fog over the field.
45) On their journey south they hit a bank of fog off the north-east coast of Scotland.
46) Visibility on the roads is down to 20 metres due to heavy fog.
47) Trees and hedges started to take form as the fog cleared.
48) The shore was barely visible through the fog.
49) A warship loomed up through the heavy fog.
50) The street lights were blurred by the fog.
51) The plane took off despite the fog.
52) There will be fog in low-lying areas.
53) The debate did little else but fog the issue.
54) A heavy fog rolled in from the sea.
55) In the fog(sentencedict.com), they got separated from the group.
56) Fog was creeping into the valley.
57) Rainy weather and fog prohibited flying.
58) Fog upset the train timetable.
59) A dense fog lay around.
60) The rising sun quickly reduced the fog.