a written assurance that some product or service will be provided or will meet certain specifications

[ Syn: warrant , warrantee , warranty ]

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

[ Syn: guaranty ]

give surety or assume responsibility; I vouch for the quality of my products

[ Syn: vouch ]

make certain of; This nest egg will ensure a nice retirement for us; Preparation will guarantee success!

[ Syn: ensure , insure , assure , secure ]

promise to do or accomplish; guarantee to free the prisoners

[ Syn: undertake ]

stand behind and guarantee the quality, accuracy, or condition of; The dealer warrants all the cars he sells; I warrant this information

[ Syn: warrant ]