1. a person who confirms or supports a statement, theory, or finding with evidence

Examples

• The witness served as a corroborator of the defendant’s alibi.
• Scientists need a corroborator to verify their experimental results.
• The journalist found a corroborator who could confirm the story’s details.
• Without a reliable corroborator, the testimony remained questionable.
• The detective searched for a corroborator to strengthen the case.
• Her colleague acted as a corroborator during the investigation.