- Secretary of Commerce, Commerce Secretary - the person who holds the secretaryship of the Department of Commerce; "the first Commerce Secretary was William C. Redfield who was appointed by Wilson"
--1 is a kind of secretary
- Secretary of Commerce, Commerce Secretary - the position of the head of the Department of Commerce; "the position of Commerce Secretary was created in 1913"
--2 is a kind of secretaryship
--2 is a member of United States Cabinet, US Cabinet