How to Say "living proof" in Spanish
The Spanish word for “living proof” is “testigo” — C1 level.
English → SpanishC1
nounC1formal
figurative evidence

Examples
Estas ruinas son el testigo de la grandeza del antiguo imperio.
These ruins are the testament to the greatness of the ancient empire.
El cuadro es un testigo mudo de las costumbres de la época.
The painting is a silent witness (or relic) of the customs of the era.
Metaphorical Usage
Here, 'testigo' is used figuratively, meaning an inanimate object or idea that serves the function of a witness by showing or proving something.
Related Translations
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