Definitions
1.verbTo give an assurance that something will be done right.
2.verbTo assume or take responsibility for a debt or other obligation.
3.verbTo make something certain."The long sunny days guarantee a good crop."
4.nounAn undertaking to answer for the payment of some debt, or the performance of some contract or duty, of another, in case of the failure of such other to pay or perform; a warranty; a security.
5.nounSomething serving as a security for such an undertaking.
6.nounAn assurance or guarantee.