fog

Fog is a cloud that is close to or on the ground and sometimes prevents a person from being able to see.

Example: It was hard to see in the morning because there was a lot of fog.

Fog is a mist or film that covers a surface.

If something becomes fogged, it becomes covered in fog.

If something gets fogged, it becomes covered with condensation or drops of water, preventing you from being able to see the object.

Example: As he breathed on the mirror, it fogged up.

If you fog something, it becomes covered in fog.