warranty

noun

1. (countable)A guarantee that a certain outcome or obligation will be fulfilled; security.

   “Those who have had the care and government of politic societies introduced coinage, as a remedy of those two inconveniences. The stamp was a warranty of the public, that, under such a denomination, they should receive a piece of such a weight, and such a fineness; […]”

   “However, governance is no universal panacea for business ills; it is a warning, not a warranty against failure.”

   “The phrase National Statistics, in capitals, is a warranty that the statistics in question are produced by neutral statisticians and are immune from political interference.”

2. (countable, obsolete)A legal agreement that was a real covenant and ran with the land: The grantor of a piece of real estate held in freehold, and their heirs, were required to officially guarantee their claim and plead their case for the title. If evicted by someone with a superior claim (paramount title), they were also required to hand over other real estate of equal value in recompense. It has now been replaced by personal covenants and the covenant of warranty.
3. (countable, obsolete)A legal agreement that was a real covenant and ran with the land: The grantor of a piece of real estate held in freehold, and their heirs, were required to officially guarantee their claim and plead their case for the title. If evicted by someone with a superior claim (paramount title), they were also required to hand over other real estate of equal value in recompense. It has now been replaced by personal covenants and the covenant of warranty.
4. (countable)A legal agreement, either written or oral (an expressed warranty) or implied through the actions of the buyer and seller (an implied warranty), which states that the goods or property in question will be in exactly the same state as promised, such as in a sale of an item or piece of real estate.
5. (countable)A written guarantee, usually over a fixed period, provided to someone who buys a product or item, which states that certain repairs and/or replacement parts will be provided free of charge in case of damage or a defect.

   “I took out an extended warranty on my television for five years at a cost of $100.”

   “I made sure to check the terms of my warranty for my computer to ensure that I was covered in case it broke down.”

   “It's always a good idea to get a good warranty on anything you buy that you think may break down.”

6. (countable)A stipulation of an insurance policy made by an insuree, guaranteeing that the facts of the policy are true and the insurance risk is as stated, which if not fulfilled renders the policy void.
7. (rare, uncountable)Justification or mandate to do something, especially in terms of one’s personal conduct; warrant.

   “[…] Since, if they disobey any precept, that is no excuse to us, nor gives us any warranty for companies fake to disobey likewise.”

verb

1. To warrant; to guarantee.