1. a person who threatens or makes threats against someone or something

Examples

• The police identified the anonymous threatener through phone records.
• School officials took action against the threatener who had been bullying students.
• The company hired security to deal with the persistent threatener.
• Witnesses described the threatener as a tall man in a dark coat.
• The threatener was arrested before he could carry out his plan.
• Online threateners often hide behind fake profiles.