testimony
/ˈtestɪməni/ noun
› [C, U] a formal statement about what someone knows or believes is true, especially in a law court tanıklık, şahitlik, ifade, beyan
the testimony of a witness692 testimony to sth formal › proof of something good bir şeyin kanıtı/delili/göstergesi
The book's continued popularity is testimony to the power of clever marketing.1906