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guarantee

verb B2 Formal

Meaning

To guarantee something means to provide a formal assurance or promise that it will happen or be done, often involving a commitment to take responsibility if it does not occur as expected.
💡 A common mistake is to confuse "guarantee" with "ensure"; while both imply a promise, "ensure" is often used for actions taken to make something happen.

Example Sentences

We guarantee the quality of all our products for one year .

Word in Context

Jenna bought a small coffee maker because the shop clerk said the company would guarantee repairs for two years . After four weeks the machine started to leak , so she brought it back and explained the problem . The clerk checked the receipt and promised to arrange a repair , but could not guarantee a quick fix because the spare part was ordered from another city . Jenna left her address and phone number and felt relieved that the company had a clear policy for returns . She decided to use the same store again if customer service stayed helpful .

Common Phrases

guarantee a refund guarantee success guarantee quality

Synonyms

Never forget "guarantee"

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