Of a light grey colour

A light grey colour

(childish) A humorous and lighthearted nonsense phrase indicating approval or mild excitement: great, wow.

(Australia, southeast Australia) The arrival of a cold front in the afternoon or evening after a day of high summertime temperatures. The arrival of the front often produces falls in temperature in the order of 10°C to 15°C and sometimes thunderstorm activity.

A period of increased pride in British culture during the 1990s, closely associated with the New Labour government of that period.

(intransitive) To decrease in temperature, activity, or temper. / (transitive) To cause to decrease in temperature, activity or temper.

(of a nuclear reactor) that uses liquid sodium as a coolant

Calm and imperturbable, especially under pressure.

simple past tense and past participle of cool down

(idiomatic) A calm, focused demeanor and mindset; a person having such characteristics.