testimony
US /ˈtes.tə.moʊ.ni/
UK /ˈtes.tə.moʊ.ni/

1.
a formal written or spoken statement, especially one given in a court of law
:
•
The witness gave compelling testimony in court.
•
Her written testimony was submitted as evidence.
2.
evidence or proof of something
:
•
The ancient ruins stand as a testimony to a lost civilization.
•
His success is a testimony to his hard work.