The coolness of the breeze was refreshing on a hot summer day.

He is so cool.

It has cooled off.

The car's engine is air-cooled.

The vintage car has an air-cooled engine.

The motorcycle is equipped with an air-cooling system.

When you meet her parents for the first time, just play it cool.

She remained calm, cool, and collected during the crisis.

During a labor dispute, there is usually a cooling-off period before any further actions are taken.