1
- Brit. an undergarment worn on the upper part of the body, typically having no sleeves〈英〉背心, 无袖汗衫。
2
- a similar garment worn on the upper part of the body for a particular purpose or activity（某种目的或活动用的）背心：
a running vest
跑步用背心
a bulletproof vest.
防弹背心。
2.1
- US & Austral. a waistcoat or sleeveless jacket〈美, 澳〉背心, 马甲。
2.2
- a piece of material showing at the neck of a woman's dress女装V形胸饰布。
1
- with obj.（一般作be vested in）confer or bestow (power, authority, property, etc.) on someone授予, 给予（权力、权威、财产等）：
executive power is vested in the President.
行政权归总统。
1.1
- （一般作be vested with）give (someone) the legal right to power, property, etc.给予（某人）合法权利：
the socialists came to be vested with the power of legislation.
社会主义者获得了立法权。
1.2
- no obj.
vest in
(of power, property, etc.) come into the possession of（权力、财产等）交给, 归属： the bankrupt's property vests in his trustee.
破产者财产交给破产财产管理人。
2
- no obj.(of a chorister or member of the clergy) put on vestments.（唱诗班歌手, 神职人员）穿圣衣, 穿法衣。
2.1
- with obj. poetic/literary dress (someone)〈诗/文〉给…穿衣服：
the Speaker vested him with a rich purple robe.
议长给他穿上华丽的紫色长袍。
短语
play（或keep）one's cards close to one's vest
- 见CHEST.
词源
late Middle English (as a verb)： from Old French vestu 'clothed', past participle of vestir, from Latin vestire; the noun （early 17th cent., denoting a loose outer garment） from French veste, via Italian from Latin vestis 'garment'.