He was wearing a dunce's cap as a punishment.

I twisted off the crown cap to open the bottle.

The officer in the peaked cap gave me a stern look.

Let’s put on our thinking caps.

The melting of the ice cap is a serious concern for global warming.

The cloud-capped mountain stood tall in the distance.

I wore a stocking cap to keep my head warm in the cold weather.

He carefully placed the percussion cap on the gunpowder before firing the musket.

I always wear a bathing cap when I go swimming.

The soldier wore a forage cap during the Second World War.