Definition of guarantee

Reference

guar·an·tee

n-t

) KEY

NOUN:

Something that assures a particular outcome or condition: Lack of interest is a guarantee of failure.
1. A promise or an assurance, especially one given in writing, that attests to the quality or durability of a product or service.
2. A pledge that something will be performed in a specified manner.
1. A guaranty by which one person assumes responsibility for paying another's debts or fulfilling another's responsibilities.
2. A guaranty for the execution, completion, or existence of something.
A guarantor.

TRANSITIVE VERB:
guar·an·teed, guar·an·tee·ing, guar·an·tees

To assume responsibility for the debt, default, or miscarriage of.
To assume responsibility for the quality or performance of: guarantee a product.
To undertake to do, accomplish, or ensure (something) for another: guaranteed to free the captives; guarantees freedom of speech.
To make certain: The rain guarantees a good crop this year.
To furnish security for.
To express or declare with conviction: I guarantee that you'll like this book.

ETYMOLOGY:
Alteration of Middle English garant, warranty, from Old French ; see guaranty

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