1. a company or firm that is one of two sellers dominating a market or industry
Usage: economics; business

Examples

• The two duopolists control over 80% of the smartphone market.
• As a duopolist in the airline industry, the company faces limited competition.
• The merger would create a duopolist situation in the telecommunications sector.
• Economists studied how the duopolists set prices without formal collusion.
• The smaller duopolist struggled to compete with its larger rival.