How to Say "guarantee" in Spanish
The most common Spanish word for “guarantee” is “garantía” — use 'garantía' when referring to the assurance that a product will be free from defects or will be repaired/replaced if it malfunctions within a certain period.
garantía
Examples
Este teléfono tiene una garantía de un año.
This phone has a one-year warranty.
fianza
fee-AHN-sah (Latin America) / fee-AHN-thah (Spain)ˈfjan.sa

Examples
El juez exigió una fianza para la liberación del acusado.
The judge required bail as a guarantee for the defendant's release.
Su palabra es mi fianza de que cumplirá el contrato.
His word is my guarantee that he will fulfill the contract.
Le di mi fianza al proyecto, confiando en su éxito.
I gave my assurance to the project, trusting in its success.
finanza
fee-NAN-sahfiˈnansa

Examples
La finanza de la operación fue cubierta por un banco internacional.
The security for the operation was covered by an international bank.
La finanza ética busca invertir en proyectos que ayuden al planeta.
Ethical finance seeks to invest in projects that help the planet.
Él es un experto en la alta finanza internacional.
He is an expert in high international finance.
La finanza pública es esencial para el desarrollo del país.
Public finance is essential for the country's development.
Singular vs. Plural
In Spanish, we usually use the plural form 'finanzas' to talk about money management or the banking sector. Use the singular 'finanza' only when speaking very formally or about 'finance' as an abstract academic concept.
Feminine Word Rules
Since this word ends in '-a', it is feminine. You should always use feminine words with it, like 'la finanza' or 'una finanza'.
Confusing 'Finanza' with 'Fianza'
Mistake: “Pagué la finanza del apartamento.”
Correction: Pagué la fianza del apartamento. While they look similar, 'fianza' is used for deposits or bail money, while 'finanza' refers to the study of money.
Garantía vs. Fianza
Related Translations
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