insure
/ɪnˈʃʊə(r)/verb
with obj.
1- arrange for compensation in the event of damage to or loss of (property), or injury to or the death of (someone), in exchange for regular advance payments to a company or to the state给…投保, 给…保险：
the table should be insured for £2,500
这张桌子应投保2,500英镑
the company had insured itself against a fall of the dollar
公司给自己投保免受美元下跌影响
no obj. businesses can insure against exchange rate fluctuations.商家可投保免受汇率波动影响。
1.1
- secure the payment of (an amount in compensation) in this way获得（赔偿数额的）支付：
your new sum insured is shown on your renewal notice.
续保通知上显示了你可得到的新保险赔偿额。
1.2
- provide insurance cover in respect of为…提供保险：
subsidiaries set up to insure the risks of a group of companies.
为集团公司提供风险保障而建立起来的子公司。
1.3
- figurative (insure someone against) secure or protect someone against (a possible contingency)〈喻〉保护（某人）免遭（意外）：
by appeasing Celia they might insure themselves against further misfortune
通过满足西莉亚的要求, 他们可能保护自己免遭更大的不幸
no obj. such changes could insure against further violence and unrest.这样的改变能避免进一步的暴力和动荡局面。
USAGE
There is considerable overlap between the meaning and use of insure and ensure. In both British and US English the primary meaning of insure is the commercial sense of providing financial compensation in the event of damage to property; ensure is not used at all in this sense. For the more general senses, ensure is more likely to be used, but insure and ensure are often interchangeable, particularly in US English, e.g. bail is posted to insure that the defendant appears for trial;the system is run to ensure that a good quality of service is maintained.
派生词
insurability
nouninsurable
adjective词源
late Middle English （in the sense 'assure someone of something'）： alteration of ENSURE.