1. a person who reveals or makes known something previously hidden or secret
Usage: often used in legal or journalistic contexts

Examples

• The discloser of the company's financial fraud faced legal retaliation.
• As a discloser of classified information, she was protected under whistleblower laws.
• The anonymous discloser provided evidence to the investigative journalist.
• He became a discloser of trade secrets and was sued by his former employer.
• The discloser's identity remained confidential throughout the investigation.