1、an arrangement with a company they agree to pay them fegular amounts of money and they agree to pay the costs,for examole,if you die or are ill/sick,or if you lose or damage sth.(保险)
2、the business of providing people with insuarance(保险业)
3、money paid by or to an insurance company(保险费)
4、insuarance against sth:sth you do to protect yourself against sth bad happening in the future(防备不测的保障措施,安全保证)
在牛津字典上找的~
