warranty
n. countablen. a written promise from a company to repair or replace a product if it breaks within a certain time. You usually get one when you buy electronics or cars.
n. a written guarantee, issued to the purchaser of an article by its manufacturer, promising to repair or replace it if necessary within a specified period.
The new refrigerator comes with a five-year warranty.
I had to pay for the repairs myself because the manufacturer's warranty expired last month.
While the basic warranty covers mechanical failure, the extended protection plan offers additional coverage against accidental damage and theft for a premium fee.
From Middle English warantye, warantie, from Anglo-Norman warrantie, an Old Northern French variant of Old French guarantie (Modern French garantie). Doublet of guarantee and guaranty. More at warrant.
Often used with the prepositions 'on' or 'for' ('a warranty on the car').
The car is in warranty.The car is under warranty.When a product is covered by a guarantee, the correct preposition is 'under', not 'in'.