Vest

A vest is a kind of clothing. It is worn on the upper part of the body. It has no sleeves.[1]

A man wearing an American vest on top of a shirt (in Britain this is called a jumper)

A man wearing a British vest

In the United States and American English, a vest is a kind of clothing sometimes worn on top of a shirt.[2]

In Britain and British English, a vest is a kind of clothing worn over the chest and below all other clothes on that part of the body.