Cap

For the term used for an appearance in an international sports match, see Cap (sport).

A cap is a form of headgear or headware. Caps have crowns that fit very close to the head. They have been used in almost every society, especially those societies which have colder weather.

A typical flat cap commonly worn in Europe

A German field cap

Baseball cap

They made their first appearance as early as 3,200BC.^[1] Caps typically have a visor, but sometimes have no brim at all.^[2] They are popular in casual and informal settings, and are seen in sports and fashion.^[2] They are designed for warmth, and often have a visor to block sunlight from the eyes. They come in many shapes, sizes, and are of different brands. Baseball caps are one of the most common types of cap.^[3]

In slang, "cap" is also a word for lying.