Synonym of VINDICATE

Judge : a public officer appointed to decide cases in a law court.
Justify : show or prove to be right or reasonable.
Argue : give reasons or cite evidence in support of an idea, action, or theory, typically with the aim of persuading others to share one's view.
Explain : make (an idea or situation) clear to someone by describing it in more detail or revealing relevant facts.
Vindicate : show or prove to be right, reasonable, or justified.

Synonym of Vindicate is Justify