GUARANTEE

[verb] [T]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.If someone guarantees something, they promise that that thing will happen or exist.European Airlines guarantees its customers top-quality service/European Airlines guarantees top-quality service for its customers. [+ two objects]The label on this bread says it is guaranteed free of/from preservatives (= it contains no preservatives).If something guarantees something else, it makes certain that it will happen.The £50 deposit guarantees (that) people return the boats after their hour has finished. [+ (that) clause]If something is guaranteed to happen or have a particular result, it is certain that it will happen or have that result.Just looking at a picture of the sea is guaranteed to make me feel sick. [+ to infinitive]If you guarantee someone's debt, you formally promise to accept the responsibility for that debt if the person fails to pay it.The company has agreed to guarantee the £10.5 million bank loan.