A formal assurance, often in writing, that certain conditions will be fulfilled, especially that a product will be repaired or replaced if not satisfactory.
The store offers a two-year guarantee on all electronics.
A promise or assurance that something will happen or that a product will work as intended.
He gave me a guarantee that the service would be completed by Friday.
verb
To provide a formal assurance or promise regarding something.
The manufacturer guarantees that the product is made from high-quality materials.
To make sure that something will happen or that something is the case.
The new safety regulations guarantee a safer working environment.
Etymology
Middle English, from Old French 'garantir', from 'garant' meaning 'warranty'.
Common Phrases and Expressions
money-back guarantee
A promise that a buyer will receive a refund if a product is unsatisfactory.
performance guarantee
A commitment by a contractor to ensure a certain level of performance.
satisfaction guarantee
A promise that a product or service will meet customer expectations.
Related Words
warranty
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.
assurance
A promise or declaration meant to give confidence; a guarantee.
pledge
A solemn promise or agreement to do or refrain from doing something.
Slang Meanings
lock it in
We need to lock it in that the event will go off without a hitch.