Essential Meaning of guarantee
1 : a promise that the quality of something (such as a product that is being sold) will be as good as expected The washer comes with a guarantee against major defects. The software comes with a money-back guarantee. [=a promise that the money you spend on a product will be returned if the product is not good enough]
2 : a promise that something is true or real They wanted a guarantee that the document was authentic.
3 : a promise that something will happen or be done They want the new contract to include a guarantee of job security. The U.S. Constitution includes guarantees against unreasonable searches. He cited the First Amendment guarantee of free speech.
Full Definition of guarantee
(Entry 1 of 2)
1 : guarantor
2 : guaranty sense 1
3 : an assurance for the fulfillment of a condition: such as
a : an agreement by which one person undertakes to secure another in the possession or enjoyment of something
b : an assurance of the quality of or of the length of use to be expected from a product offered for sale often with a promise of reimbursement The washer comes with a guarantee against major defects.
4 : guaranty sense 4
guaranteed; guaranteeing; guarantees
Definition of guarantee (Entry 2 of 2)
1 : to undertake to answer for the debt, default, or miscarriage of guarantee a loan
2 : to engage for the existence, permanence, or nature of : undertake to do or secure guarantee the winning of three tricks
3 : to give security to guaranteed her against loss
4 : to assert confidently I guarantee you'll like it
Love words? Need even more definitions?Merriam-Webster unabridged
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