GUARANTEE
a formal assurance (typically in writing) that certain conditions will be fulfilled, especially that a product will be repaired or replaced if not of a specified quality
an undertaking to answer for the payment or performance of another person's debt or obligation in the event of a default by the person primarily responsible for it.
provide a formal assurance, especially that certain conditions will be fulfilled relating to a product, service, or transaction
promise with certainty
an undertaking to answer for the payment or performance of another person's debt or obligation in the event of a default by the person primarily responsible for it.
provide a formal assurance, especially that certain conditions will be fulfilled relating to a product, service, or transaction
promise with certainty