Sinónimos y Antónimos de "falsificar"

Question

Create a sentence in Spanish (with the English translation) using a synonym or antonym for today's word falsificar.

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Answer 1

autentificar = to authenticate

Autentificó que feu una pintura original.

He authenticated that it was an original painting.

Answer 2

engañar - sinónimo - to fool

Las aparencias engañan. Appearances can be deceiving.