NOTE: Warranty and guarantee are very similar in meaning. <br>TO GUARANTEE (verb). Assure, make certain. Example: Many young people nowadays are deciding against going to university as they think that a university degree will not guarantee them a job.A GUARANTEE / A WARRANTY (noun) An assurance that something is protected. Example: He got a three year guarantee with his new television.A warranty is often a written document, whereas a guarantee can also be a spoken agreement.<br>