Vest

A vest is a garment covering the upper body. The term has different meanings around the world:

Waistcoat :(a sleeveless under-jacket). This is called a waistcoat in the UK and many commonwealth countries, or a vest in the US and Canada. It is often worn as part of formal attire, or as the third piece of a lounge suit.
Undershirt :(an undergarment, normally worn under a shirt). It is known as an undershirt in the US and Canada, vest in the UK and many commonwealth countries, and singlet in Australia/asia, and is typically in the form of a T-shirt or sleeveless top.
Other sleeveless jackets: Vest may refer to other outer garments, such as a sports tank top, or a padded sleeveless jacket popular for hunting, commonly known as a hunting vest. Another common variant is the fishing vest which carries a profusion of external pockets for carrying fishing tackle. The term jerkin is also used to refer to this sort of sleeveless outdoor coat.
A sweater vest (American and Canadian English): This may also be called a pullover, sleeveless sweater, or tank top (which may also refer to a type of sleeveless shirt).
Banyan: This Indian garment is commonly called a vest in Indian English.

Etymology

The term vest derives from French veste, Italian vesta, veste "robe, gown," and Latin vestis. The sleeveless garment worn by men beneath a coat may have been first popularised by King Charles II of England, since a diary entry by Pepys (October 8, 1666) records that "[t]he King hath yesterday, in Council, declared his resolution of setting a fashion for clothes.... It will be a vest, I know not well how; but it is to teach the nobility thrift."

Translation

The word "Vest" occurs as such in the following languages: English, Dutch.

Translation(s) in other languages: Danish: Vest (tøj), German: Weste, Spanish: Chaleco, French: Gilet, Hebrew: אפוד, Norwegian (Nynorsk): Klesplagget vest, Portuguese: Colete, Slovenian: Brezrokavnik, Swedish: Väst (plagg).