Longman Dictionary of Contemporary English homepage

Topic: DAILY LIFE

fog

2 verb
     
fog2 past tense and past participle fogged, present participle fogging
1 also fog up [intransitive and transitive]D if something made of glass fogs or becomes fogged, it becomes covered in small drops of water that make it difficult to see through [= mist up, steamed up]:
The windscreen had fogged up.
2 [transitive] to make something less clear [= cloud]
Definition of fog from the Longman Dictionary of Contemporary English within
the topic DAILY LIFE
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