1. plural of expertness; the quality or state of being expert; high degree of skill or knowledge in a particular field
Usage: Usually used in plural to refer to multiple instances, domains, or types of expertise

Examples

• The team's expertnesses in software development and design made them highly sought after.
• Her expertnesses across multiple languages gave her a competitive advantage in international business.
• The company valued the expertnesses of its senior engineers.
• Their combined expertnesses in finance and law made them excellent consultants.
• The project benefited from the expertnesses of specialists from different fields.
• He demonstrated expertnesses in both classical and modern music.
• The organization recognized the expertnesses of its employees through professional development programs.