The software comes with a 'money-back guarantee'. [=a promise that the money you spend on a product will be returned if the product is not good enough]
We used our house as a 'guarantee' for the loan. [=we said that the bank could take our house if we did not pay back the loan]
There is no 'guarantee' that they will approve the contract. [=there is no way to be sure that they will approve it]
(..) Nigel, Nigel. No. I don't know what you expect me to do. There's nothing in this whole closet that'll fit a size six. I can guarantee you. These are all sample sizes- two and four. - All right. We're doing this for you. And- - A poncho? You'll take what I give you (..)2006 The Devil Wears Prada