fog

B2 · Upper Intermediate Countable noun

n. a state of mind where you feel confused and cannot think clearly.

n. a state of mental obscurity or confusion, often characterised by a lack of focus or slow cognitive processing.

“I was in such a fog after the long flight that I forgot my suitcase.”

“Exhausted by weeks of overtime, he moved through the office in a mental fog, struggling to process even the simplest requests from his colleagues.”

C1 · Advanced Uncountable noun Photography Technical

n. a blur or dark area on a photograph caused by light leaking in or chemical errors.

n. a silver deposit or general darkening on a photographic negative or print, typically caused by stray light or chemical over-development.

“The old film had some fog on the edges because the camera was broken.”

“The technician noted significant chemical fog on the negatives, likely resulting from the high temperature of the developer solution during processing.”

B1 · Intermediate

v. to become covered with small drops of water so that you cannot see through it.

v. to become obscured by condensation or moisture, typically on a glass surface.

“The bathroom mirror started to fog up while I was taking a hot shower.”

“The pilot watched the cockpit windows begin to fog as the aircraft descended rapidly into the humid tropical air mass.”

B2 · Upper Intermediate

v. to make something difficult to understand or see clearly.

v. to obscure or confuse a situation, issue, or memory.

“The lawyer tried to fog the issue by talking about unrelated facts.”

“The passage of time had begun to fog her memory of the event, making it difficult to provide a reliable testimony.”