Word.ws English Dictionary

fog up

fog up verb: to coat, or become coated, with condensation. To steam up.

Verb

fog up (third-person singular simple present fogs up, present participle fogging up, simple past and past participle fogged up)

  1. (ambitransitive) To coat, or become coated, with condensation. To steam up.
    • My glasses fogged up when he opened the shower door.
  2. (slang, transitive) To get (someone) drunk.
  3. (slang, transitive) To confuse (somebody).

Forms of fog up

third-person singular presentfogs up
present participlefogging up
past participlefogged up
pastfogged up

Questions about fog up

What does fog up mean?
Fog up means to coat, or become coated, with condensation. To steam up.
What part of speech is fog up?
Fog up is a verb.
What is the past tense of fog up?
The past tense of fog up is fogged up.

Words near fog up in the dictionary

  1. fog out
  2. fog signal
  3. fog signals
  4. fog tsunami
  5. fog tsunamis
  6. fog up
  7. fog-eater
  8. fog-eaters
  9. fog-fruit
  10. fog-fruits
  11. fog-horn

Source and license

Adapted from Wiktionary: fog up (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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