Definition

To clear a surface of fog or condensation, especially on glass, so that it becomes transparent again.

Example

I need to defog the car's windshield before we can drive safely.

Tense Forms

Conversation

Hey, can you help me defog my car windows?

Sure! It gets really foggy when it’s cold outside.

I hate driving with a foggy windshield; it's so distracting.

I know, right? Just turn on the defrost and it should clear up quickly.

Synonyms & Antonyms

Root Explanation

Defog → It is formed from "de-" (meaning down or away) and "fog" (from Old English "fogga", meaning mist or vapor). The word "defog" means to remove or clear away fog or mist.

Memory Tip

Think of 'removing' ('de-') the 'mist' ('fog') to remember that 'defog' means to clear away fog.

Visually Confused Words