Definition of vests:
(n) :
(Canada, US) A sleeveless garment that buttons down the front, worn over a shirt, and often as part of a suit; a waistcoat.
(n) :
(British) A sleeveless garment, often with a low-cut neck, usually worn under a shirt or blouse.
(n) :
A sleeveless top, typically with identifying colours or logos, worn by an athlete or member of a sports team.
(n) :
Any sleeveless outer garment, often for a purpose such as identification, safety, or storage.
(n) :
A vestment.
(n) :
Clothing generally; array; garb.