• 1. a formal assurance, esp in writing, that a product, service, etc, will meet certain standards or specifications
• 2. a promise, esp a collateral agreement, to answer for the debt, default, or miscarriage of another
• 3. a person, company, etc, to whom a guarantee is made
• 4. a person, company, etc, who gives a guarantee
• 5. a person who acts as a guarantor
• 6. something that makes a specified condition or outcome certain
• 7. a variant spelling of guaranty
• 8. to take responsibility for (someone else'...

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