waistcoat

English Thesaurus

1. a man's sleeveless garment worn underneath a coat (noun.artifact)

hypernym	:	garment,
definition	:	an article of clothing (noun.artifact)

hyponym	:	bulletproof vest,
definition	:	a vest capable of resisting the impact of a bullet (noun.artifact)

part meronym	:	three-piece suit,
definition	:	a business suit consisting of a jacket and vest and trousers (noun.artifact)