vindicate
verb
Definitions
To clear of an accusation, suspicion or criticism.
Example: to vindicate someone's honor
To justify by providing evidence.
Example: to vindicate a right, claim or title
To maintain or defend (a cause) against opposition.
Example: to vindicate the rights of labor movement in developing countries
To provide justification for.
Example: The violent history of the suspect vindicated the use of force by the police.