a promise that something will be done or will happen, especially a written promise by a company to repair or change a product that develops a fault within a particular period of time

The system costs £99.95 including shipping and handling and a twelve-month guarantee. 包括邮资、包装费用，该系统价格共计99.95英镑，保用12个月。

The TV comes with/has a two-year guarantee. 这台电视机保修期为两年。

a money-back guarantee 退款保证

[ + that ] The United Nations has demanded a guarantee from the army that food convoys will not be attacked. 联合国要求这支军队保证不攻击护送粮食的车队。

[ + (that) ] There is no guarantee (that) the discussions will lead to a deal. 商谈不一定能达成任何协议。

A product as good as that is a guarantee of commercial success (= it is certain to be successful). 那样好的产品质量就是成功获利的保证。

The shop said they would replace the television since it was still under guarantee. 商店说会给我们退换那台电视机，因为它还没有过包退期。

Synonyms: assurance (PROMISE)bond (PROMISE)commitmentoath (PROMISE)pledge promise (SAY CERTAINLY)undertaking (PROMISE) vow word (PROMISE)

a formal agreement to take responsibility for something, such as the payment of someone else's debt

something valuable that you give to someone temporarily while you do what you promised to do for them, and that they will keep if you fail to do it

If a product is guaranteed, the company that made it promises to repair or change it if a fault develops within a particular period of time.

The fridge is guaranteed for three years. 这台冰箱保修期是3年。

to promise that something will happen or exist

[ + two objects ] European Airlines guarantees its customers top-quality service. 欧洲航空公司保证为乘客提供最好的服务。

The label on this bread says it is guaranteed free of/from preservatives (= it contains no preservatives). 这种面包的标签上写着保证不含防腐剂。

If you guarantee someone's debt, you formally promise to accept the responsibility for that debt if the person fails to pay it.

If something guarantees something else, it makes certain that it will happen.

[ + (that) ] The £50 deposit guarantees (that) people return the boats after their hour has finished. 50英镑的押金会确保人们在划完船后将船归还。

If something is guaranteed to happen or have a particular result, it is certain that it will happen or have that result.

[ + to infinitive ] Just looking at a picture of the sea is guaranteed to make me feel sick. 哪怕是看一眼大海的图片，我都会有晕船的感觉。