vindicate

To clear of an accusation, suspicion or criticism.

to vindicate someone's honor

As a man of vision, he understood this. Without Cerberus, humanity was doomed to an existence of groveling subservience at the feet of alien masters. Still, there were those who would call what he did criminal. Unethical. Amoral. History would vindicate him, but until it did he and his followers were forced to exist in hiding, working toward their goals in secret.

To justify by providing evidence.

to vindicate a right, claim or title

The Ukrainians immediately demanded a goal and their claims were vindicated as replays showed the ball crossed the line before Terry's intervention.

To maintain or defend (a cause) against opposition.

to vindicate the rights of labor movement in developing countries

When Trump's election pulled back the curtain on the rise of the far-right in America, I'd naively assumed the Jewish left would be vindicated.

To be proven reasonable, correct, or justified.

To provide justification for.

The violent history of the suspect vindicated the use of force by the police.