- 1[intransitive, transitive] fog (something) (up) if a glass surface fogs or is fogged up, it becomes covered in steam or small drops of water so that you cannot see through
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- 2[transitive] fog something to make someone or something confused or less clear I tried to clear the confusion that was fogging my brain. The mayor was trying to fog the real issues before the election.
fog
verbNAmE//fɔɡ//, NAmE//fɑɡ//
Verb Forms present simple I / you / we / they fog ,
he / she / it fogs ,
past simple fogged ,
-ing form fogging ,
Check pronunciation: fog