warranty
/ˈwɒ.ɹən.ti/noun
A promise that something will work or be done as agreed; a form of security.
Example sentences
- “The washing machine comes with a two-year warranty.”
- “The laptop's warranty covers repairs but not accidental damage.”
The set phrase is 'under warranty': repairs are free while a product is under warranty. Compare 'guarantee', the everyday near-synonym.