1. a boxer in the heaviest weight class
Usage: sports
2. a person or thing of great importance, influence, or ability
Usage: figurative

1. having great weight or mass
2. having great importance or influence
Usage: figurative

Examples

• The heavyweight champion defended his title successfully.
• She’s a heavyweight in the tech industry.
• The heavyweight machinery required special transport.
• This heavyweight novel won several literary awards.
• He trained hard to compete in the heavyweight division.
• The company is a heavyweight competitor in the market.
• They needed heavyweight equipment for the construction project.