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English definition of “guarantee”

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guarantee

verb [T]
 
 
/ˌɡærənˈtiː/
to promise that something will happen or is true: guarantee sb sth European Airlines guarantees its customers top-quality service.guarantee that sth is sth We guarantee that our products are 100% safe.be guaranteed (to be) sth Their bread is guaranteed free of preservatives.
to make something sure to happen or to be true: Good design does not always guarantee success.guarantee that How can we guarantee that no one can access our intranet?
COMMERCE if a company guarantees a product or service, it gives a written promise to return the customer's money or repair or exchange the product if there is a problem with it within a particular period: guarantee sth for sth We guarantee all our work for six months.
BANKING to offer something valuable to someone with the agreement that they can keep it if you fail to pay a loan or do what you promise: If you guarantee the loan, you will lose the business if you default on payments.
(Definition of guarantee verb from the Cambridge Business English Dictionary © Cambridge University Press)
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