1. a list of people or things that are disapproved of or are to be punished or avoided

1. to put someone or something on a blacklist

Examples

• The actor was put on a blacklist and couldn’t find work in Hollywood.
• Several countries were on the travel blacklist due to safety concerns.
• The company maintains a blacklist of unreliable suppliers.
• They decided to blacklist the website for containing inappropriate content.
• The union threatened to blacklist any business that didn’t support workers’ rights.
• His name appeared on the security blacklist at the airport.
• The school will blacklist students who violate the honor code.