( formal ) to show or be evidence that sth is true
SYN evidence :
The film testifies to the courage of ordinary people during the war.
( formal ) to show or be evidence that sth is true
SYN evidence :
The film testifies to the courage of ordinary people during the war.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005