1. a formal promise or assurance that certain conditions will be fulfilled, especially that a product will be repaired or replaced if not of a specified quality
2. something given as security for the fulfillment of a contract or the payment of a debt

1. to provide a formal assurance or promise, especially that certain conditions will be fulfilled

Examples

• The bank required a guaranty before approving the loan.
• She offered her house as guaranty for her brother’s debt.
• The manufacturer provides a one-year guaranty on all parts.
• His father agreed to guaranty the mortgage payments.
• The written guaranty covers defects in materials and workmanship.
• They will guaranty delivery within 48 hours.
• The guaranty protects consumers against faulty products.