Meaning of guarantee

Definition of guarantee

(noun) a written assurance that some product or service will be provided or will meet certain specifications
an unconditional commitment that something will happen or that something is true; "there is no guarantee that they are not lying"
a collateral agreement to answer for the debt of another in case that person defaults
(verb) give surety or assume responsibility; "I vouch for the quality of my products"
make certain of; "This nest egg will ensure a nice retirement for us"; "Preparation will guarantee success!"
promise to do or accomplish; "guarantee to free the prisoners"
stand behind and guarantee the quality, accuracy, or condition of; "The dealer warrants all the cars he sells"; "I warrant this information"

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